All your uncaught errors go though the Global.asax file

 void Application_Error(object sender, EventArgs e)
{
    errors ApplicationError = new errors();
    ApplicationError.LogApplicationError(Error.GetType().ToString(),Request.Path.ToString(),
Request.Url.ToString(), Error.Source.ToString(), Error.Message.ToString(),
Error.StackTrace.ToString(), Error.TargetSite.ToString());
    Server.ClearError();
    ApplicationError.Dispose();
    Server.Transfer("error.aspx?Message=" + Error.GetType().ToString(), false);

}

Here you can process that error how you see fit. We try to write our
unhandled errors to an SQL log table. If this fails, we contact to SMTP and
see the error report directly to the programmer.  The parameter list above is
the more common items you can return.

Yes it is possible, look over here for some examples on how to have an
handler catch all the unhandled exceptions :
http://www.codeproject.com/dotnet/unhandledexceptions.asp
http://www.codeproject.com/dotnet/ExceptionHandling.asp
http://www.codeproject.com/dotnet/SafeForm.asp

However be careful of a few things :
-behaviour might differ if you run your program with or without the
debugger
-behaviour might differ if you have visual studio installed or not on
the computer
-Make sure that it works with different forms (some people seems to
have problems : unhandled exceptions of one form are catch and
exceptions from another form are not)

yeghia (sosy) schreef: