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NT AUTHORITY\NETWORK SERVICE does not have write access to ‘..\Temporary ASP.NET Files’.

Wednesday, January 4th, 2012

Got this error while trying to browse to a WCF service from IIS7: The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to ‘D:\WINDOWS\Microsoft.NET\Framework\v4.0.3019\Temporary ASP.NET Files’. 

What happened? There must be some recent Windows updates to IIS7 that had messed up the previously security settings, but this was just my guessing. Important thing was how to fix this quickly. Found a post here granting access to IIS configuration and other directorys used by ASP.Net, and executed this line of command:

C:\Windows\Microsoft.NET\Framework\v4.0.30319>aspnet_regiis -ga “NT Authority\Ne
twork Service”

And that took care of it. “Network Service” is the identity used by the Application Pool used by the WCF service.

Posted in .Net Framework, IIS7, Security, Security, WCF, Web Services | 2 Responses »
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