Classic ASP debugging tools or system?

We have a third-party application that was written in classic asp.
Every once in a while, the application causes the server to stay at 100% CPU Usage. Requiring a reboot.

How can I pin point the problem? What tools can I use?

I could ask the users what they were doing at the moment, but it's too many of them, and it would be hard to identify who caused the expensive operation on the servers CPU.

Any help or ideas is greatly appreciated.
silentthread2kSenior Software EngineerAsked:
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HainKurtSr. System AnalystCommented:
open the asp code


in IIS, enable asp debugging... also IE, tools->internet options->advanced->uncheck "disable script debug for ie"

now browse the page, it will ask for debugger , choose what is available on your pc
visual studio 2000, vs 2005, vs 2008... script debugger...

also use fiddler to debug response-requests

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