tilde (~) problem in live server

If someone should experience the same problem, I've found the solution.

The behaviour happens if you use wildcard mapping in IIS and the default page for the root folder of the application inherits from a custom Page type.

Here are workarounds:
https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=105061
and here the ms patch
http://support.microsoft.com/?scid=kb%3Ben-us%3B911300&x=11&y=10