SNA Windows 95 Client Support for Multiple Users on Windows NT

 Last reviewed: February 3, 1998
Article ID: Q176019
The information in this article applies to:
  • Microsoft SNA Server on Windows NT, versions 3.0, 3.0 Service Pack 1 (SP1), 3.0 Service Pack 2 (SP2)

SYMPTOMS

Windows NT supports applications running under different user contexts. However, if these applications attempt to use the SNA Server API interfaces on a Windows NT computer running the SNA Server Windows 95 client, only the first SNA application will work. The error message will vary, depending on the application, though an APPC or CPIC application will encounter the following API return codes: 

  APPC primary return code = 0xF004 (AP_COMM_SUBSYSTEM_NOT_LOADED)

  CPIC return code = 20 (PRODUCT_SPECIFIC_ERROR)
NOTE: The above errors may occur under other more common circumstances as well, though these errors should not be confused with the specific problem described in this article. For more information about the above API errors, see the following Knowledge Base articles: 

  ARTICLE-ID: Q148359
  TITLE     : SNA Server APPC Error: F004 AP_COMM_SUBSYSTEM_NOT_LOADED

  ARTICLE-ID: Q132720
  TITLE     : SNA Server CPIC Allocate Error 20 (CM_PRODUCT_SPECIFIC_ERROR)

CAUSE

The SNA Server Windows 95 client was originally designed to support client applications under a single user context.

WORKAROUND

Use the SNA Server Windows NT client software on the Windows NT computer, instead of the SNA Server Windows 95 client software.

STATUS

Microsoft has confirmed this to be a problem in the SNA Server Windows 95 client included in SNA Server versions 3.0, 3.0 Service Pack 1, and 3.0 Service Pack 2. A supported fix is now available, but has not been fully regression tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information. 

Keywords          : kbbug3.00 kbbug3.00.sp1 prodsna snaappc snacpic snalua snaprog snawin95 snawinnt kbbug3.00.sp2
Version           : WINDOWS:3.0,3.0SP1,3.0SP2
Platform          : WINDOWS
Issue type        : kbbug
Solution Type     : kbfix

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Last reviewed: February 3, 1998
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