Omer my class mate discussed about Asynchronous programming model in windows application today. So during the discussion I found some articles about the topic. Hope it can help you guys too.
http://www.code-magazine.com/Article.aspx?quickid=0403071
http://www.codeproject.com/dotnet/Using_MSMQ_ASPnet_Window.asp
http://www.codeguru.com/columns/VB/article.php/c6553/
Best Regards,
Jerry
EPM/SharePoint Consultant & Project Server Trainer
Lahore, Pakistan
Mob: +92 345 4257573,
http://jerryyasir.blogspot.com