WCF: System.ServiceModel.AddressAccessDeniedException: HTTP could not register URL

If you are getting the “Your process does not have access rights to this namespace” error after switching your WCF service to run under a different account, try the following:

1) Install the Windows support tools from your Windows 2003 Server install CD from SUPPORT/TOOLS.
2) Open a command prompt and go to C:\Program Files\Support Tools
3) Run the following:

httpcfg set urlacl -u http://+:// -a “D:(a;;GX;;;)”

after replacing , , and with the appropriate values.  If your service URL is just the default at that port, leave it off, but keep the trailing /.  of course is the SID of the account context of your service.

That crazy ACL string at the end is in SDDL syntax and I found this great reference for SDDL from the University of Washington’s website: http://www.washington.edu/computing/support/windows/UWdomains/SDDL.html