Microsoft KB Archive/83436

= Windows 3.1 Resource Kit SYSTEM.INI [386ENH] Section M-Z =

Article ID: 83436

Article Last Modified on 12/15/2000

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APPLIES TO


 * Microsoft Windows 3.1 Standard Edition
 * Microsoft Windows 3.11 Standard Edition

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This article was previously published under Q83436



SUMMARY
This article contains information from the SYSINI.WRI file that ships in the Microsoft Windows Resource Kit for the Microsoft Windows operating system version 3.1. You can view SYSINI.WRI within Microsoft Windows Write.

The [386ENH] section of the SYSTEM.INI file contains information specific to running Windows in 386 enhanced mode, including information used for virtual-memory page swapping.



MORE INFORMATION
MapPhysAddress= Default: None Purpose: Specifies the address range (in megabytes) in          which the memory manager preallocates physical page-table entries and linear address space. Use this setting if you are using a DOS device driver (such as an older version of RAMDrive that uses         extended memory) that needs contiguous memory. To change: Use Notepad to edit the SYSTEM.INI file. MaxBPs= Default: 200 Purpose: Specifies the maximum number of break points (a          method for transferring control to 386 Enhanced          Windows) that can be used by the Virtual Memory Manager. You may need to increase this value if         you are using a third-party virtual device driver that requires more break points than the default value. To change: Use Notepad to edit the SYSTEM.INI file. MaxCOMPort= Default: 4 Purpose: Specifies the maximum number of COM ports supported in enhanced mode. Change this value if         you have more than 4 COM ports installed in your computer. To change: Use Notepad to edit the SYSTEM.INI file. MaxDMAPGAddress= Default: 0FFFh (non-EISA computers); 0FFFFFh (EISA          computers) Purpose: Specifies the maximum physical page address that can be used for Direct Memory Access (DMA). This setting works only with hard drives that support DMA. To change: Use Notepad to edit the SYSTEM.INI file. MaxPagingFileSize= Default: 50 percent of available disk space Purpose: Specifies the maximum size (in kilobytes) for a          temporary swap file. To change: Choose the 386 Enhanced icon from the Control Panel window. MaxPhysPage= Default: Determined by Windows based on the highest physical page number detected by the Memory Manager during initialization. Purpose: Specifies the maximum physical page number that the Memory Manager can manage as a useable page. This setting allows pages to be added at a         physical address beyond what the Memory Manager recognized during initialization. If the value specified is less than what the Memory Manager determines, the Memory Manager will ignore several physical pages that it would normally use, preventing the use of memory. This is useful if         you are using a hardware device that cannot recognize all of the physical memory in your computer (for example, ISA DMA Network cards         cannot access physical memory above 16 megabytes.) To change: Use Notepad to edit the SYSTEM.INI file. MCADMA= Default: True for MCA computers; False for all other computers Purpose: Specifies whether Windows should use the MCA extensions to direct- memory access (DMA). This setting only applies to MCA computers. Disable this setting if you are using an MCA computer, but the DMA extensions are not implemented. To change: Use Notepad to edit the SYSTEM.INI file. MessageBackColor= Default: 1 (for blue) Purpose: Specifies the background color of message screens, such as the screen that appears when you press Ctrl+Alt+Del. To change: Use Notepad to edit the SYSTEM.INI file. MessageTextColor= Default: F (for white) Purpose: Specifies the color used to display text in          message screens, such as the screen that appears when you press Ctrl+Alt+Del. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">MinTimeSlice= Default: 20 Purpose: Specifies the minimum amount of time (in          milliseconds) a virtual machine is allowed to run before other virtual machines can take over. A         smaller value (such as 10 milliseconds) will make multitasking appear smoother, but will decrease overall system performance. To change: Choose the 386 Enhanced icon from the Control Panel window. <pre class="fixed_text">MinUnlockMem= Default: 40 Purpose: Specifies the amount of memory that must remain unlocked and available for use when resuming a         virtual machine if more than one virtual machine is running. To change: Use Notepad to edit the SYSTEM.INI file. (You           should never need to change this setting. <pre class="fixed_text">MinUserDiskSpace= Default:  500 Purpose:  Specifies how much disk space (in kilobytes) to          leave free when creating a temporary swap file.          Use this setting if your system's paging drive has          less available space than Windows can use for          paging. This setting does not apply if a permanent          swap file exists. To change:  Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">Mouse=<filename-or-*devicename> (See &quot;Device=&quot;, above) Default:  None (Setup assigns an appropriate value based on          your system configuration.) Purpose:  Specifies the virtual device that controls the          mouse hardware in 386 enhanced mode. To change:  Choose the Windows Setup icon from the Main            Group window. <pre class="fixed_text">MouseSoftInit=<Boolean> Default: True Purpose: Specifies whether Windows should convert INT 33h function 0 hard initialization calls to function 33 soft initialization calls, which do not reset the mouse hardware. If enabled, you can use a         mouse with a non-Windows application that you start in a window. Disable this setting if the cursor and screen information appear garbled or         distorted when using the mouse with an          application. If you disable this setting, you may not be able to use the mouse when running a non- Windows application in a window. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">NetAsynchFallback=<Boolean> Default: False Purpose: If enabled, Windows attempts to save a failing NetBIOS request. When an application issues an         asynchronous NetBIOS request, Windows will attempt to allocate space in its global network buffer to         receive the data. If there is insufficient space in the global buffer, Windows will normally fail the NetBIOS request. If this setting is enabled, Windows will attempt to save such a request by         allocating a buffer in local memory and preventing any other virtual machines from running until the data is received or the timeout period (specified         by the NetAsynchTimeout setting) expires. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">NetAsynchTimeout= Default: 5.0 Purpose: Specifies the timeout period (in seconds) when Windows needs to enter a critical section in order to service an asynchronous NetBIOS request. It is         used only when NetAsynchFallback is enabled. This value can include a decimal (such as 0.5). To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">NetDMASize= Default: 32 on Micro Channel (TM) machines (IBM PS/2 or          compatible); 0 on non-Micro Channel machines (IBM          PC/AT compatible). Purpose: Specifies the DMA buffer size (in kilobytes) for NetBIOS transport software if a network has been installed. In this case, the buffer size is the larger value between this value and the value of         DMABufferSize. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">NetHeapSize= Default: 12 Purpose: Specifies the size (in kilobytes) of the data- transfer buffers in conventional memory that Windows allocates for transferring data over a         network when running in 386 enhanced mode. All values are rounded up to the nearest 4K. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">Network=<filename-or-*devicename> (See &quot;Device=&quot;, above) Default: None (Setup assigns an appropriate value based on          your system configuration.) Purpose: Specifies the type of network you are using with Windows in 386 enhanced mode. To change: Choose the Windows Setup icon from the Main Group window. <pre class="fixed_text">NMIReboot=<Boolean> Default: No Purpose:  If enabled, causes a reboot to occur when a          nonmaskable interrupt is received. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">NoEMMDriver=<Boolean> Default: False Purpose: If enabled, prevents Windows in 386 enhanced mode from installing its expanded memory driver. This differs from setting EMMSize to zero, which does not prevent the EMM driver from being loaded. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">NoWaitNetIO=<on-or-off> Default: On Purpose:  Specifies whether or not to convert synchronous NetBIOS commands to asynchronous commands. When this setting is enabled, synchronous NetBIOS commands are converted. This can improve overall system performance when running several applications. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">OverlappedIO=<Boolean> Default: Off, if InDOSPolling is enabled; Otherwise, On Purpose:  If enabled, several virtual machines can make read and write requests to a disk before the first request has been completed. If disabled, virtual machines cannot issue a request to read or write to a disk until any previous read and write requests have been completed. To change: Use Notepad to edit the SYSTEM.INI file. (You           should never need to change this setting. <pre class="fixed_text">PageBuffers= Default:  4 Purpose:  Specifies the number of 4K page buffers used to          store asynchronous read and write pages. This          setting is used only if you are using 32-Bit Disk          Access and a permanent swap file. You can specify          a value between 0 and 32. Increasing this value          can improve Windows' performance. To change:  Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">PageOverCommit= Default:  4 Purpose:  Specifies the multiplier for determining the          amount of linear address space the Memory Manager          will create for the system. The amount of linear          address space that the Memory Manager will create          is computed by rounding up the amount of available          physical memory to the nearest 4 megabytes and          then by multiplying that value to the value specified for this setting. You can specify a         value between 1 and 20. Increasing this value increases the amount of available linear address space, causing the size of data structures to         increase. This also increases paging activity proportionately and can slow down the system. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">Paging=<Boolean> Default: Yes Purpose: Enables or disables demand paging (virtual memory) and permanent and temporary swap files. Disable this setting only if you need the disk space normally used for a temporary swap file. To change: Choose the 386 Enhanced icon from the Control Panel window. <pre class="fixed_text">PagingDrive=<drive-letter> Default: None Purpose: Specifies the disk drive where Windows in 386 enhanced mode will create a temporary swap file. This setting is ignored if you have a permanent swap file. If you don't have a permanent swap file and no drive is specified or the specified drive does not exist, Windows will attempt to put your temporary swap file on the drive containing your SYSTEM.INI file. If the specified drive is full, paging will be disabled. To change: Choose the 386 Enhanced icon from the Control Panel window. <pre class="fixed_text">PagingFile=<path-and-filename> Default: WINDOWS\WIN386.SWP Purpose: Specifies the path and filename for the temporary swap file that is created when you start Windows in 386 enhanced mode. This file is deleted when you quit Windows. This setting overrides the PagingDrive setting. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">PerformBackfill=<Boolean> Default: Auto (Windows automatically checks to see if it          needs to fill in memory  based on how DOS is          occupying memory.) Purpose: Specifies whether or not to allocate a full 640K of memory to a computer that has less than 640K of         base conventional memory. Enabling or disabling this setting overrides the automatic checking done by Windows. To change: Use Notepad to edit the SYSTEM.INI file. (You           should never need to change this setting,            because Windows can automatically detect whether            or not to perform a backfill. <pre class="fixed_text">PermSwapDOSDrive=<drive-letter> Default:  None Purpose:  Specifies the disk drive where Windows in 386          enhanced mode will create a permanent swap file.          This setting is ignored if you are using a          temporary swap file. To change:  Choose the 386 Enhanced icon from the Control            Panel window. <pre class="fixed_text">PermSwapSizeK= Default:  None Purpose:  Specifies the desired size in kilobytes of a          permanent swap file. To change:  Choose the 386 Enhanced icon from the Control            Panel window. <pre class="fixed_text">PerVMFILES= Default:  10; 0 if SHARE is installed.\177 Purpose:  Specifies the number of private file handles          Windows should allocate to each virtual machine. Increase this value if an application does not have enough file handles to run. The total number of file handles, including the global handles specified in the FILES= statement in CONFIG.SYS, cannot exceed 255. If it exceeds 255, this value will be rounded down. Set this value to 0 to         prevent the allocation of any private file handles. If SHARE is installed, then this setting is ignored in the SYSTEM.INI file. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">PSPIncrement= Default: 2 Purpose: Specifies the amount of additional memory, in 16- byte increments, that Windows should reserve in         each successive virtual machine when the UniqueDOSPSP setting is enabled. The setting that works best for your machine might vary depending on your memory configuration and the applications you are running. Valid values are 2 through 64. See UniqueDosPSP for more information. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">ReflectDosInt2A=<Boolean> Default: False Purpose: Indicates whether Windows should consume or          reflect DOS INT 2A signals. The default means Windows will consume these signals and therefore run more efficiently. Enable this setting if you are running memory-resident software that relies on detecting INT2A messages. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">ReservedHighArea=<paragraph-range> Default: None Purpose: Specifies a range of memory that Windows will not scan to find unused address space. This has the side effect of turning off the RAM and ROM search code for the range. The range (two paragraph         values separated by a hyphen) must be between A000 and EFFF. This scanning can interfere with some adapters that use the same memory area. The starting value is rounded down and the ending value is rounded up to a multiple of 4K. For example, you could set ReservedHighArea=E100-E3FF to prevent Windows from scanning the first 12K of         memory starting at E100. You can specify more than one range by including more than one ReservedHighArea line. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">ReservePageFrame=<Boolean> Default: True Purpose: Specifies whether Windows should give preference to EMS page frame space or conventional memory when it has to use one of the two to allocate MS- DOS transfer buffers. This choice is necessary when Windows cannot find space (other than EMS         page frame space) between 640K and 1MB. If         enabled, this setting will preserve EMS page frame space at the expense of conventional memory. If         your non-Windows applications do not require expanded memory, disable this setting to make more conventional memory available to non-Windows applications. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">ReserveVideoROM=<Boolean> Default: False Purpose: Instructs Windows that video read-only memory exists in pages C6 and C7. If the text font appears scrambled when starting non-Windows applications, enable this setting. To change: Use Notepad to edit the SYSTEM.INI file. (You           should not need to change this setting, because            the default setting causes Windows to detect            video ROM correctly.) <pre class="fixed_text">ROMScanThreshold= Default: 20 Purpose: Specifies a parameter used for determining if a          memory area in the adapter region (usually between          C000-EFFF) that has no ROM header or incorrect header information is read-only memory (ROM). The number for this setting specifies how many different values must occur within the memory area to determine whether or not it is ROM. If the number of transitions is greater than the value for this setting, Windows recognizes the memory as ROM. If the number of transitions is less than the value, Windows recognizes the memory as usable memory. A value of 0 disables this setting, causing Windows to recognize this memory area as         usable. To change: Use Notepad to edit the SYSTEM.INI file. (You           should never need to change this setting.) <pre class="fixed_text">ScrollFrequency= Default: 2 Purpose: Specifies the number of lines you can scroll in a          non-Windows application that is running in a          Window before its display is updated. To change: Use Notepad to edit the SYSTEM.INI file. (You           should never need to change this setting.) <pre class="fixed_text">SGrabLPT=<port-number> Default: None Purpose: Routes all printer interrupts on the specified port to the Windows screen rather than to the current virtual machine. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">SyncTime=<Boolean> Default: True Purpose: If enabled, Windows periodically synchronizes its time with the computer's CMOS clock. If this setting is disabled, Windows usually maintains the correct time, unless TrapTimerPorts is disabled and you are running applications that can cause the system time to run faster or slower than the actual time. This setting is related to the TrapTimerPorts setting. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">SystemROMBreakPoint=<Boolean> Default: True if Windows is started in real mode of the 80386/486 CPU. False if Windows is started in         virtual mode of the 80386/486 CPU. Most 386 memory managers, such as QEMM and 386MAX, require this value to be set to false. If a 386 memory manager is running Windows is started in virtual mode. Otherwise, Windows is started in real mode. Purpose: Specifies whether Windows should use ROM address space between F000:0000 and 1MB for a break point. Windows in 386 enhanced mode normally searches this space to find a special instruction that is         used as a system break point. If this address space contains something other than permanently available ROM, you should disable this setting. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">SysVMEMSLimit=<number -or-kilobytes> Default: 2048 Purpose: Specifies how many kilobytes of expanded memory Windows is permitted to use. Setting this value to         0 prevents Windows from gaining access to any expanded memory. Setting it to -1 gives Windows \ all the available expanded memory that it         requests. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">SysVMEMSLocked=<Boolean> Default: No Purpose:  Specifies whether to swap expanded memory being used by Windows applications to the hard disk. Locking expanded memory (enabling this setting) can improve the performance of a Windows application that uses it, but can slow down the rest of the system. To change: Use Notepad to edit the SYSTEM.INI file. (You           should never need to change this setting.) <pre class="fixed_text">SysVMEMSRequired= Default: 0 Purpose: Specifies how many kilobytes of expanded memory must be free in order to start Windows. Leave this setting at zero if no Windows applications require expanded memory. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">SysVMV86Locked=<Boolean> Default: False Purpose: If enabled, causes the virtual-mode memory used in          the system virtual machine to remain locked in          memory instead of swaping it out to disk. To change: Use Notepad to edit the SYSTEM.INI file. (Because Windows controls this process, there is           no need to change this setting.) <pre class="fixed_text">SysVMXMSLimit=<number-or-kilobytes> Default: 2048 Purpose: Specifies the maximum amount of memory (in          kilobytes) the extended  memory driver allocates to DOS device drivers and memory-resident software in the system virtual machine. Set the value to -1 to give an application all the available extended

memory that it requests. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">SysVMXMSRequired= Default: 0 Purpose: Specifies how many kilobytes of extended memory must be reserved by the XMS driver in order to         start Windows. Leave this setting at zero if there are no XMS users in the system virtual machine. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">TimerCriticalSection= Default: 0 Purpose: Instructs Windows to go into a critical section around all timer interrupt code, and specifies a         timeout period (in milliseconds). Specifying a         positive value causes only one virtual machine at          a time to receive timer interrupts. Some networks and other global memory-resident software may fail unless this setting is used. However, it slows down performance and can make the system seem to         stop for short periods of time. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">TokenRingSearch=<Boolean> Default: True Purpose: If enabled, Windows searches for a token ring network adapter on machines with IBM PC/AT (R) architecture. Disable this setting if you are not using a token ring card and the search interferes with another device. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">TranslateScans=<Boolean> Default: No Purpose:  If enabled, Windows will translate a keyboard's          scan codes to make them compatible with standard IBM scan codes. Use this setting only if you have a keyboard that generates non-standard scan codes. This setting is used only for the Switcher Screen and fullscreen message boxes. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">TrapTimerPorts=<Boolean> Default: True Purpose: Specifies whether Windows should trap read and write operations to the system timer ports that are performed by applications. If disabled, Windows will not trap these operations, allowing applications that fequently read or write to the timer to run faster. However, this may interfere with Windows' ability to keep accurate system time. If disabled, Windows can usually detect when an application has changed the timer interrupt interval and then make any adjustments to the time. If your system's time appears to be running fast or slow, enable this setting. If you do not want to enable this setting, enable the SyncTime setting. This causes Windows to check the time periodically and then make any necessary adjustments. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">UniqueDOSPSP=<Boolean> Default: True (If you are running a network based on          Microsoft Network or LAN Manager. See the          NETWORKS.WRI online document to find out whether          the network you are running is one of these); False for all other networks. Purpose: If enabled, Windows starts every application at a          unique address (PSP). Each time Windows creates a         new virtual machine to start a new application, Windows reserves a unique amount of memory (i         bytes) below the application. For example, if the first application is loaded at address M, the second application is loaded at address M+i, the third at M+2i, and so on.The amount of memory (i) is determined by the PSPIncrement setting. These settings ensure that applications in different virtual machines all start at different addresses. Some networks use applications' load addresses to         identify the different processes using the network. Disabling this setting on such networks, might cause one application to fail when you exit another because the network interprets them as the same application. If you enable this setting, slightly less memory is available for non-Windows applications. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">UseableHighArea=<paragraph-range> Default: None Purpose: Specifies a range of memory that Windows will treat as unused address space regardless of what may be there. UseableHighArea takes precedence over ReservedHighArea if you specify ranges that overlap. The range (two values separated by a         hyphen) must be between A000 and EFFF. The starting value is rounded down and the ending value is rounded up to a multiple of 4K. For example, you could set UseableHighArea=E100-E3FF to ensure that Windows can use the first 12K of         memory starting at E100. You may specify more than one range by including more than one UseableHighArea line. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">UseInstFile=<Boolean> Default: False Purpose: Specifies whether Windows should look in the INSTANCE.386 file for information it can use to         determine whether data structures within MS-DOS need to be local. There are two other methods for giving Windows this information: internal tables within the device, and an INT 2Fh call documented in the OEM Adaptation Kit. Both methods are preferable to using this setting; it is provided only for compatibility with Windows/386 version 2.x. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">UseROMFont=<Boolean> Default: True Purpose: If enabled, Windows uses the soft font stored in          the video read-only memory (ROM) for displaying messages that appear when non-Windows applications are running in a full screen, and for displaying the text that appears when switching away from a         non-Windows application. Disable this setting if         the font used to display messages is different than the font used in the application, or if         random dots and shapes appear on your screen. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">VGAMonoText=<Boolean> Default: True Purpose: Instructs Windows to ignore the video memory address space in VGA displays, usually used for monochrome adapters. When this setting is         disabled, Windows can use the B000h through B7FF range for upper memory space, provided that no         hardware device is using these addresses and your applications do not use the monochrome display mode of your VGA adapter.

Note: This setting applies to VGA displays only.

To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">VideoBackgroundMsg=<Boolean> Default: True Purpose: If enabled, Windows displays a message when a          background application is suspended, or if its display cannot be updated properly because video memory is low. Disabling this setting turns off the warning message. This setting affects all non- Windows applications that are currently running. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">VideoSuspendDisable=<Boolean> Default: False Purpose: Specifies whether or not to suspend applications running in the background if their display become corrupted. If this setting is enabled, the application continues running. If disabled, applications become suspended and a warning message appears, if the VideoBackgroundMsg setting is enabled.

Note: This setting applies to VGA displays only.

To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">VirtualHDIrq=<Boolean> Default: On for AT-compatible computers; Off for all other computers. Purpose: If enabled, Windows in 386 enhanced mode can terminate interrupts from the hard disk controller, bypassing the ROM routine that handles these interrupts. Some hard drives might require this setting to be disabled in order for interrupts to be processed correctly. If this setting is disabled, the ROM routine handles the interrupts, which slows down system performance. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">WindowKBRequired= Default: 256 Purpose: Specifies how much conventional memory (in          kilobytes) must be free in order to start Windows. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">WindowMemSize=<number-or-kilobytes> Default: -1 Purpose: Limits the amount of conventional memory Windows can use for itself. The default value (-1) indicates that Windows can use as much conventional memory as it needs. If there is not enough memory to run Windows in 386 enhanced mode, try entering a positive value less than 640. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">WindowUpdateTime= Default: 50 Purpose: Specifies the amount of time (in milliseconds) Windows takes before it updates the display oXf non-Windows applications running in a window. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">WinExclusive=<Boolean> Default: No Purpose:  If enabled, all of the computer's processing time is allocated to Windows whenever a Windows application is in the foreground. If this setting is enabled and a Windows application is in the foreground, no non-Windows application will run. To change: Choose the 386 Enhanced icon from the Control Panel window. <pre class="fixed_text">WinTimeSlice=<number,number> Default: 100,50 Purpose: This setting contains two numbers. The first number specifies the relative amount of processing time (based on the MinTimeSlice setting) given to         all Windows applications running in the foreground, relative to the time allocated to all non-Windows applications running in the background. The second number specifies the relative amount of processing time given to all Windows applications running in the background when a non-Windows application is running in the foreground. The range of valid numbers is 1 through 10000. The important value is the ratio of         these settings to the corresponding settings in          the PIF's of the active non-Windows applications. To change: Choose the 386 Enhanced icon from the Control Panel window. <pre class="fixed_text">WOAFont= Default: DOSAPP.FON Purpose: Specifies which font file(s) are loaded into memory when running non-Windows applications. These fonts are also available to your Windows applications as long as a non-Windows application is running. To change: Quit Windows and then run Setup from MS-DOS. This setting changes when you change the Codepage or Display setting in Setup. ___________________________________________________________ XlatBufferSize= Default: 8 Purpose: Specifies the size of the low-memory buffer used to map MS-DOS calls from protected mode to virtual 386 enhanced mode. Increasing this value can improve the performance of protected mode Windows applications that read or write information in a         large number of bytes (for example, some database          applications). However, this may decrease the amount of memory available for running non-Windows applications and may cause problems on networks that use named pipes. These networks may require a         value of 4. The value you specify is rounded to         the next 4-kilobyte increment. For example, if you set this value to 5, Windows rounds it up to 8. To change: Use Notepad to edit the SYSTEM.INI file. <pre class="fixed_text">XMSUMBInitCalls=<Boolean> Default: Ususally true, but may be false depending on the extended memory manager you are using. Purpose: Specifies whether or not Windows should call the extended memory driver's upper memory block (UMB) management routines. To change: Use Notepad to edit the SYSTEM.INI file. (You           should never need to change this setting.) Reference(s):

&quot;Microsoft Windows Resource Kit,&quot; version 3.1, SYSTEM.INI

Additional query words: 3.10 win31

Keywords: KB83436

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