Top "W3wp" questions

What is w3wp.exe?

I have a WCF service running under a service user on my local system. Every time I try to debug …

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W3WP.EXE using 100% CPU - where to start?

An ASP.NET web app running on IIS6 periodically shoots the CPU up to 100%. It's the W3WP that's responsible …

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ERROR: Symbol file could not be found. windbg.exe

I downloaded the symbols from http://www.microsoft.com/whdc/devtools/debugging/symbolpkg.mspx the package (Windows 7 RTM x86 retail …

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Cannot attach debugger to w3wp

I'm debugging an ASP.NET application but sometimes cannot find w3wp neither in Visual Studio process list (Menu: Debug …

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How to debug w3wp clr.dll error

My client has an ASP.NET application installed on two production servers (balanced with NLB, but that's irrelevant). Both servers …

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Visual Studio 2012: Unable to attach the process. A debugger is already attached

I built solution, created application in IIS and mapped it to the application folder. It works fine. Then I go …

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How to close IIS Worker Process

I was trying to install Visual Studio 2008 SP1 on my machine and I encountered this issue. I looked it up, …

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Why can't I attach to the w3wp.exe process when I turn off Just My Code in VS2010?

I'm using VS2010 Beta 2 and I turned on .NET Framework source stepping, so I had to disable 'Just My Code'. …

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How can I determine which w3wp.exe process belongs to which web site?

I have an IIS6 web server that is hosting two application pools. Occasionally, one of the w3wp processes will …

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IIS7: Faulting application w3wp.exe, what is the root cause of these crashes?

Our Website is in .NET but with some old ASP and 32bits libraries too in it. It had been working …

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