How to release Crystal licenses

[kk]

Hi

I have problems with releasing Crystal licences. I'm using W2k + Visual
Studio.NET + Crystal Reports for Visual Studio .NET. When I end ASP.net
session Crystal license is not released and 5 concurrent users will reach
after 5 sessions. None of these lines in my code won't help.
System.Runtime.InteropServices.Marshal.ReleaseComObject(CRApp) /Application
class from CRAXDRT library

or

Session.Contents.Remove("CRApp") /Session variable

or

Session.Contents.Clear()

or

Session.Abandon()

Regards

Kari