Microsoft KB Archive/129543

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PRB: CreateFile Fails on Win32s w/ UNC Name of Local Machine

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Q129543

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The information in this article applies to:


 * Microsoft Win32s versions 1.2, 1.3, 1.30a, 1.3c

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SYMPTOMS
CreateFile fails on Win32s if the file name is a UNC name that refers to the local machine.

CAUSE
This is a limitation of Windows for Workgroups version 3.11. The same problem occurs with 16-bit Windows-based applications using OpenFile.

RESOLUTION
Do not use a UNC name to open a file on the local machine.

STATUS
This behavior is by design.

MORE INFORMATION
There is a similar limitation with Windows version 3.1 and LAN Manager. If you create a network drive and try to open a file on the same network share using a UNC name, it will fail. This also happens with 16-bit Windows-based applications.

Additional query words: 1.20

Keywords : kbOSWin32s

Issue type :

Technology : kbWin32sSearch kbWin32s120 kbWin32s130 kbWin32s130a kbWin32s130c