Microsoft KB Archive/147432

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ODBC, MAPI, Video for Windows, NetDDE, & RAS/RPC Under Win32s

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Q147432

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The information in this article applies to:


 * Microsoft Win32s versions 1.30, 1.30a, 1.30c

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The following interfaces are not completely supported under Win32s. Any exceptions are noted.


 * RAS API and RPC.
 * Video for Windows API (note that the MCI interface is supported).
 * MAPI interface (Also, a Win32s client can not thunk down to 16-bit MAPI in Windows 3.x. You will have to write a 16-bit client that calls the 16-bit MAPI APIs, and then have the Win32s client thunk to this 16-bit client). For more information on why a Win32s client (a 32-bit thunk DLL) cannot thunk to the 16-bit MAPI DLL, please refer to the following Knowledge Base article:

Q149710 Why Thunking to 16-bit MAPI Will Fail Under Win32s
 * NetDDE interface.
 * ODBC (Win32s supports only ODBC version 2.0 and 2.1. Later versions of ODBC were not completely tested on Win32s).

Additional query words: kbinf

Keywords : kbOSWin32s

Issue type :

Technology : kbWin32sSearch kbWin32s130a