Detect CPU hog in ASP.NET app

I have a custom ASP.NET VB.NET 1.1 app It uses MSSQL as database. It has considerable user visits 5000+ per day Sometimes the app starts to consume all the CPU. The strange thing is that if I stop the website the CPU consumption does not stop until I restart the IIS service. So, I think that there will be a bug in the code. I will provide the sourcecode along with access via Terminal services to the server if needed. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform IIS, ASP.NET, VB.NET,MSSQL