Microsoft KB Archive/157534

= XCLN: Memory Valet Utility to Correct "Out of Memory" Errors =

Article ID: 157534

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Client 5.5
 * Microsoft Exchange Client 5.0

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This article was previously published under Q157534



SUMMARY
When you run Microsoft Exchange on 16-bit Windows platforms (Windows 3.x Windows for Workgroups 3.1x) you may receive unexplained "Out of Memory" and "Insufficient Memory" error messages. In some circumstances, a utility called "Memory Valet" can prevent these errors.

This utility is available from Microsoft and should only be used after normal troubleshooting steps have failed. See the following Microsoft Knowledge Base articles for initial client troubleshooting:

151359 XCLN: Out of Memory Errors Starting Schedule+ After Exchange

150156 XCLN: Cannot Send from Word When Exchange Client Not Running

112676 Troubleshooting Insufficient Memory Errors



MORE INFORMATION
The utility Memory Valet 2.0 is included in Application Note WG1137. This utility is available from Microsoft Product Support and can be mailed to customers who continue to have problems with out of memory errors after following the troubleshooting steps listed in the articles above.

This application note is not available through electronic services. Memory Valet can help in situations in which there is not enough memory below 640K in the Windows system virtual machine to create a task database (TDB). In such a situation, the following problems can occur:


 * When you try to run an application, you receive the message "Out of memory. Close one or more applications and try again."
 * An application calls WinExec to launch a component of itself and then fails.
 * An OLE or dynamic data exchange (DDE) session fails to start the server application.
 * When you try to run an application, you receive the message "Too many files open, please close one or more files," and increasing file handles does not correct the problem. (This is a rare occurrence and should only affect applications that require more than 20 open file handles.)

Memory Valet contains two components: the executable file (Memvalet.exe) and the Control Panel utility (Memval.cpl). Memval.cpl lets you configure Memory Valet and then displays the current state of the low-memory area. By using Memval.cpl, you can determine how much low-memory space is available, the size of the largest free block, and how many TDBs can fit in low memory given its current state.

Keywords: kbhowto kbusage KB157534

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