opening a new thread, and storing some links that I found.
the problem: during testing the progress dialog, I found that there are issues when you are accessing a session with several concurrent http requests.
Solution: not using the session mechanism from .Net, since that locks the session when writing. Using a simple class TSession for handling session variables. see commit for details: bazaar.launchpad.net/tpokorra/o ... ision/2395
stackoverflow.com/questions/2874 ... n-requests
blogs.msdn.com/b/amitsh/archive/ ... ation.aspx
perezgb.com/2010/03/18/concurren ... t-sessions
meghainfotech.wordpress.com/2010 ... matically/
codeproject.com/Articles/146 ... Behavior-i
netortech.com/Blog/Entry/4/C ... -in-ASPNet