After a brief foray into Windows 7 Beta just to check it out I took my laptop back to Vista 64-bit, wiping everything out in the process to get a clean slate. Many moons ago, when first installing Vista, it took me about 3 minutes before I disabled the UAC. This time I'm trying hard not to disable it. (You know, best practices about not developing as a sysadmin and all of that.) Now I'm running into security issues that I'm forced to address rather than bypass. In the end this is a good thing. Here's the latest: In VS2008 I right-clicked on the solution and chose Add > New Web Site. Then I picked the WCF Service template and changed the location to HTTP. This tells VS to create a new virtual application beneath the Default Web Site (in my case c:\inetpub\wwwroot) but I got the error: "Unable to creat the Web site 'http://localhost/Foo' because I was not running Visual Studio in an administrator context. The solution is to run VS as an administrator (you can create a shortcut of devenv.exe and under the Advanced tab toggle "Run as administrator") in order to add the web site. Then save and close and go back in under your logged in credentials.