Article ID: 137799
Article Last Modified on 10/23/2003
APPLIES TO
- Microsoft LAN Manager 2.2 Standard Edition
- Microsoft Windows for Workgroups 3.1
This article was previously published under Q137799
SYMPTOMS
On your computer with the real mode TCP/IP protocol stack installed, when you run a Winsock program that uses a custom blocking hook routine, the program hangs during data transfers.
This problem does not occur with every Winsock program that uses a custom blocking hook routine.
CAUSE
Your custom blocking hook routine does not dispatch WM_TIMER messages causing your Winsock program to hang.
The default blocking hook dispatches all messages. Some programs require a custom blocking hook to provide additional functionality to the program, however, this custom blocking hook may lack the ability to dispatch WM_TIMER messages.
RESOLUTION
In the custom blocking hook routine, include a PeekMessage() call to remove WM_TIMER messages and dispatch them.
Additional query words: prodlm prodnt 2.20 3.11 lanman wfw wfwg
Keywords: KB137799
