Fix: Your ASP.NET application may stop responding when it starts in the .NET Framework 1.1
I never heard about this class but KBAlertz report a fix for the case your application use CompilationMutex class.
SYMPTOMS
When your Microsoft ASP.NET application starts in the Microsoft .NET Framework 1.1, your application may stop responding. This problem may occur when the .NET Framework tries to access the CompilationMutex class.