QUESTION: How many APPLICATIONHOST.CONFIG files should you have in an IIS 7.0/.NET 4.0 installation ???

Question

Sorry, I am truly a newbie...

I've looked pretty thoroughly for this time of the night for an answer, but haven't found one, so I thought I'd ask here.

I've got one in C:\windows\Microsoft.NET\Framework\v4.0.30319\Config\applicationhost.config;

I've got another in C:\windows\System32\inetsrv\config\applicationhost.config.

I suspect that the one in the .NET FRAMEWORK path is a duplicate and shouldn't be there, but I'm not sure, so I'd thought I'd ask.

THANKS FOR YOUR HELP.

Jeff

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Jeff McVey

Answer 1

Hello, Jeff.

As your question is related to both .NET Framework and IIS, you might also ask in the IIS forums, here:

http://forums.iis.net/

This is just a WAG, but I suspect both are needed. One for local apps (in .NET 4) and one for web apps running on the IIS server (even though the "server" is software running on the local machine.

Answer 2

Hi Jeff,

I've done a research on this issue on my lab.

I tested four computers but all of them tells me "applicationhost.config" cab only be found under

"C:\Users\<User Account>\Documents\IISExpress\config"

Their environment:

1. .NET 4 installed

2. Visual Studio installed

3. Haven't do any other action to IIS

Then I found this page http://learn.iis.net/page.aspx/124/introduction-to-applicationhostconfig/

It seems this issue is more related to IIS.

For more details, please refer to IIS forum pvdg42 mentioned.

Best regards,

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Barry Wang [MSFT]
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