I'm not exactly sure when this happened but I'm no longer able to open webs using MS Expression Web (any version) on my 2008 server standard sp2. When I attempt to open any of my webs, I get the error in the title of this post. I can open the webs if I use a file reference rather than http. However, I'm not able to create a new web.
Can anyone tell me what's wrong and how to resolve this issue?