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Error Code 0x8013134b in

I got the following error debugging an ASP.NET project earlier today:

Auto-attach to process '[2440] w3wp.exe' on machine '...' failed. Error code 0x8013134b.

The problem was that I had installed .NET 2.0 which had registered ASP.NET 2.0 on the Web Site I was trying to debug. The site I was trying to debug was in .Net1.1.

Fixing it is simple:

* Run the IIS Manager(Write inetmgr in run window)
* Right click on the web site with the problem
* Click the ASP.NET tab
* Change the ASP.NET version from 2.something to 1.something in the combo and debugging works again

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Rohit kakria
I am software developer, moderator of
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