HttpSendRequest hangs   

I am experiencing a strange behavior. Following all the coding examples, I am 
doing some XML string transfers using the InternetOpen(), InternetConnect(), 
HttpOpenRequest(), HttpSendRequest(), HttpQueryInfo(), CloseInternetHandle() 
chain of API calls. At random points during execution, the call to 
HttpSendRequest() will hang. Using ProcessExplorer, it seems to be hung on 
the InternetLockRequestFile() API call within the HttpSendRequest() call.

Any hints, suggestions, other places to look?

date: Tue, 26 Aug 2008 10:03:01 -0700   author:   prorhino