16-Bit App WNetGetCaps Call Return Value on Win32 (120359)
The information in this article applies to:
- Microsoft Win32 Software Development Kit (SDK) 3.5
- Microsoft Win32 Software Development Kit (SDK) 3.51
- Microsoft Win32 Software Development Kit (SDK) 4.0
This article was previously published under Q120359 SUMMARY
16-bit Windows-based applications often call WNetGetCaps() to determine the
capabilities of the installed network. When a Windows-based application
running on Windows NT calls WNetGetCaps(), the return value is 0x8004,
which corresponds to WNNC_NET_Multinet | WNNC_SUBNET_WinWorkgroups.
However, the Windows NT Windows on Windows (WOW) layer and Windows 95 do
not support the Windows for Workgroups Multinet (MNet) APIs, so a call to
one of these APIs returns a failed Dynalink error.
The return value of WNetGetCaps() may not seem technically correct for
Windows for Workgroups. It was designed to be compatible with all existing
16-bit Windows-based applications.
If you need to determine whether a 16-bit Windows-based application is
running on Windows NT or MS-DOS/Windows version 3.1, use GetWinFlags().
GetWinFlags() returns a WF_WINNT flag if the application is running under
WOW on Windows NT.
GetWinFlags() is an existing function that was modified in WOW to add the
following flag:
#define WF_WINNT 0x4000
| Modification Type: | Major | Last Reviewed: | 1/20/2000 |
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| Keywords: | KB120359 |
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