Calling CMSPTR over Thunking DLLs Causes Access Violation (162511)
The information in this article applies to:
- Microsoft SNA Server 2.11
- Microsoft SNA Server 2.11 SP1
This article was previously published under Q162511 SYMPTOMS
When a 16-bit CPI-C application calls uses the
Set_Prepare_To_Receive_Type(cmsptr) application programming interface (API)
while running over the 16-bit-to-32-bit CPIC thunking interface, the
application terminates abnormally with an application error.
CAUSE
The CPIC thunking interface was not handling this call correctly.
In the thunking code, The Set_Prepare_To_Receive_Type(cmsptr) function
is defined as:
CallProcEx32W(4,0xF,(DWORD)lpfn32, (DWORD)pConvID,<BR/>
(DWORD)pPTRType, (DWORD)pRetCode);
The function should be:
CallProcEx32W(3,0xF,(DWORD)lpfn32, (DWORD)pConvID,<BR/>
(DWORD)pPTRType, (DWORD)pRetCode);< RESOLUTION
Apply the fix referenced below.
STATUS
Microsoft has confirmed this to be a problem in SNA Server 2.11, 2.11
Service Pack 1 (SP1).
A supported fix is now available for 2.11 SP1, 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.
| Modification Type: | Major | Last Reviewed: | 11/4/2003 |
|---|
| Keywords: | kbbug kbfix kbnetwork KB162511 kbAudDeveloper |
|---|
|