We have created a WCF Web Service and are trying to host it on the new Win 2008 VPS. This is a .NET 3.5 solution and it runs fine on a Win Server 2008 box we have here in the office. When we try to view the service it returns a "404 not found - The requested document was not found on this server." which is a weird error since normally if an endpoint or web.config is not correctly configured you get the full stack trace page. The normal ASPX engine is working with our test page (http://bannisterlake.com/default.aspx) but the SVC won't render! (http://bannisterlake.com/LBVSDataService_V3.svc) We ensured: - WCF activation was installed as a feature (http activation under .NET 3.5SP1) - the svc-ISAPI-2.0-64 Handler Mapping is present and handling .svc - ran the %windir%\Microsoft.NET\Framework64\v3.0\WindowsCommunication Foundation\ServiceModelReg.exe Ã¢â‚¬â€œi to double ensure all WCF registration was done properly in IIS7 We have this running on two other IIS7 setups and I've been trying for two weeks to get it running on Jodo. Up against a wall if anybody else has come across this I'm open to suggestions!