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I recently upgraded to Windows 10 from Windows 7 and I was unable to debug a web site in Visual Studio 2005. I got the error: unable to connect to visual studio's localhost web server. I don't know if the upgrade caused it to break, but this was previously working.

John
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2 Answers2

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To resolve this I ran process monitor on devenv.exe to see which calls ended in not SUCCESS. Turns out, my Visual Studio 2005 installation was looking for WebDev.WebServer.exe to be located here:

C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE

Whereas it was missing. I copied it over from here:

C:\Program Files (x86)\Common Files\Microsoft Shared\DevServer\9.0

And it seems to work.

Across the internet other answers will tell you it needs to be in the .NET framework folder, but I found that in my case it needed to be in the Visual Studio 8 folder.

John
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  • Brilliant worked a treat! The only issue I encountered was (probably due to it being a work environment) I had to use DOS opened as administrator to copy. Nice one @John :) – walbury Feb 09 '21 at 23:34
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Copy WebDev.WebServer.EXE from "C:\Program Files (x86)\Common Files\microsoft shared\DevServer\9.0" to "C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE" will resolve this.

user3559374
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