Microsoft KB Archive/121906

BUG: Win32s Version 1.2 Bug List at Time of Release PSS ID Number: Q121906 Article last modified on 11-13-1994 PSS database name: WIN32SDK

1.20 WINDOWS

The following is a list of the known bugs in Win32s version 1.2 at the time of its release.


 * EM_GETWORDBREAKPROC return code is incorrect.
 * Int 3 cannot be trapped via Structured Exception Handling (SEH) on Win32s.
 * GlobalAlloc(GMEM_FIXED) from 32-bit .EXE locks memory pages. It is more efficient to use GlobalAlloc(GMEM_MOVEABLE) and call GlobalFix if necessary.
 * WinHlp32.exe will not run.
 * C Run-time functions getdcwd/getcwd do not work.
 * PlayMetaFileRecord/EnumMetaFile contain incorrect lpHTable.
 * Print setup common dialog does not work as expected (the dialog does not appear in some situations).
 * Size of memory mapped files is rounded to a whole number of pages, meaning that the size is a multiple of 4096 bytes.
 * Functions chdrive and SetCurrentDirectory fail on PCNFS network drives.
 * Calling CreateWindowEx with a 32-bit menu handle causes int 3.
 * GetExitCodeProcess does not return exit codes for Win16 applications.
 * FindFirstFile/FindNextFile return local time, not Universal Coordinated Time (UTC) time. This behavior matches Windows 3.1, but not Windows NT.
 * Memory passed to Netbios must be allocated with GlobalAlloc.
 * biSizeImage field of BITMAPINFOHEADER is zero
 * CreateFile on certain invalid long filenames closes Windows.
 * Only the first CBT hook gets messages.
 * GlobalUnlock sets an error of ERROR_INVALID_PARAMETER.
 * CreateFile with share options of 0 does not lock file.
 * lstrcmp/lstrcmpi do not use the collate table correctly.
 * FreeLibrary in DLL_PROCESS_DETACH crashes system.
 * LockResource does not return NULL if hResource is invalid.
 * sndPlaySound may cause a crash or may work poorly.
 * GetVolumeInformation fails for Universal Naming Convention (UNC) root path.
 * Stubbed API GetFileAttributesW does not return -1 on error.
 * Code page CP_MACCP not supported.
 * Invalid LCIDs are not recognized.
 * CreateFile fails to open an existing file in share mode.
 * CreateDirectory/RemoveDirectory handle errors differently on Windows NT and Win32s.
 * SetCurrentDirctory returns different error codes than on Windows NT.
 * FindText leaks memory.
 * FindText may cause GP fault.
 * Not all 32-bit DLLs have correct version numbers.
 * WINMM16.DLL has no version information.
 * RegEnumValue and other Registry functions return ERROR_SUCCESS even though they are not implemented. Win32s implements only the registry functions supported by Windows.
 * COMPOBJ.DLL calls FreeLibrary on w32sys.dll, leaving the FP exception vector invalid. Causes crash, often out to MS-DOS.
 * CreatePolyPolygonRgn is not closing the polygons.
 * SetDIBits with DIB_PAL_INDICES is not supported (this behavior matches Windows 3.1, but not Windows NT).
 * Progman gets restored when debugger app exits.
 * Cannot do ReadProcessMemory (RPM) on memory that has a hardware break point set on it.
 * Pointer to common dialog structures (lParam) becomes invalid.
 * ResumeThread while debugging writes to debuggee stack.
 * Fault in initialization if app has more than 128K bytes of local data. This is because the application stack is limited to 128K.
 * Using CVW debugger, exception will terminate the app being debugged.
 * RealizePalette error on Windows NT is -1, but is not defined under Win32s.
 * Using StartDoc does not produce document from printer.
 * Can’t open file using full path with different drive in common dialog.
 * GetFileInformationByHandle doesn’t return correct file attribute.
 * GlobalReAlloc(x,y,GMEM_MOVEABLE) returns wrong handle type.
 * Thread Local Storage (TLS) data not initialized to zero in TlsAlloc.
 * spawnl does not pass parameters to an MS-DOS application.
 * Incorrect context at EXIT_PROCESS_DEBUG_EVENT.
 * Win32s doesn’t support language files other than default (l_intl.nls).
 * SetLocaleInfoW/SetLocaleInfoA not implemented.
 * GetScrollPos fails if scroll pos is 0.
 * SetScrollPos fails if last scroll pos is 0.
 * FreeLibrary may crash when using universal thunks.
 * Win32s does not support forwarded exports.
 * GetCurrentDirectory returns wrong directory after calling GetOpenFileName.
 * Module management APIs missing ANSI to OEM translation.
 * LoadString leaks memory if the string is a null string.

Additional reference words: 1.20 buglist1.20 KBCategory: kbprg kbbuglist KBSubcategory: W32s

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================================================================ Copyright Microsoft Corporation 1994.