Problem writing to temp folder from IIS

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Environment: Windows 10

I wrote an ISAPI Extension in C which among other things writes a file to C:\Windows\Temp. It works fine on the laptop I wrote it on. Now that I am trying to setup the extension on another computer, it can't write to the temp folder.

On the on it works on, IIS_IUSRS has 'Special' permissions but on the other one, I am unable to set that permission.

What I have tried:

I tried giving IIS_IUSRS write access to C:\Windows\Temp but I get an error message. The message is something about can't enumerate objects. I can't capture the exact message because now it shows that IIS_IUSRS has permission even though it actually doesn't.

Posted 9-Mar-19 7:09am

Roland M Smith

Updated 9-Mar-19 10:26am

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Bryian Tan 9-Mar-19 13:15pm

The application pool is using which account to run>

Roland M Smith 9-Mar-19 15:33pm

The default ApplicationPoolIdentity

Bryian Tan 9-Mar-19 15:54pm

Try remove the access and add again to see what it complaining about.

Roland M Smith 9-Mar-19 16:27pm

I tried several times to explicity give IIS_IUSRS access to C:\Windows\Temp but I am getting this error:

An error occurred while applying security information to:

Failed to enumerate objects in the container. Access is denied.

Roland M Smith 9-Mar-19 16:41pm

On my laptop that does not have the problem, I didn't have to fiddle with permissions, it just worked.

Roland M Smith 9-Mar-19 17:03pm

I switched to using C:\Temp and I am able to give permissions but I still can't write to it from IIS. Of course it works on my other pc.

Bryian Tan 9-Mar-19 22:35pm

try with c:\someotherfolder

Roland M Smith 10-Mar-19 8:51am

I tried C:\Temp already.

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