Known problems on Windows platforms

This topic contains troubleshooting information on known problems on Windows platforms.

Problems when the IBM HTTP Server runs on the same system as a Virtual Private Networking Client. A problem occurs when the IBM HTTP Server runs on a system, along with a Virtual Private Networking client, for example, Aventail Connect. We can experience the following problem, or see the following error message:

• The IBM HTTP Server does not start - reference Apache FAQ.

• The IBM HTTP Server does not start. The error log contains the following message:

  "[crit] (10045) The attempted operation is not supported for the type of object referenced: Parent: 
  WSADuplicateSocket failed for socket ###"
  
  

Aventail Connect is a Layered Service Provider (LSP) that inserts itself, as a shim, between the Winsock 2 API and the Windows native Winsock 2 implementation. The Aventail Connect shim does not implement WASDuplicateSocket, the cause of the failure. The shim is not unloaded when Aventail Connect is shut down.

Fix the problem by doing one of the following:

• Explicitly unloading the shim

• Rebooting the machine

• Temporarily removing the Aventail Connect V3.x shim