Suspected memory leak in asp.net application

I have a few asp.net applications running on my IIS6 server. And after I published a new one, it froze after a few hours. When i restart the app-pool it works again.

I see after I restart the app-pool that the memory footprint of w3wp.exe increases steadily by about 4-500kb each second, and it d开发者_JAVA技巧oesn't seem to stop.

How can I find out what is causing the memory leak?

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