When opening an ASP.Net page in design view, the following two error messages are displayed in succession :
1. "The operating system is not presently configured to run this application"
2. "Cannot load MSO.dll"
I am running Windows 7 x64, and have installed Microsoft Office 2010 Beta x64 a week ago (24 Nov). VS was working fine alongside Office2010 since then until yesterday (30 Nov). I have seen posts about a registry entry called Path which points to the MSO.dll file, but that is applicable to previous versions of VS. I've also tried repair installing Office2010.
I can't see any events in the Event viewer generated by this error.
The MSO.dll file exists in my Program Files\Common Files\Microsoft Shared\Office14 folder.
An update was installed on 30 Nov, entitled "Update for Microsoft Search Enhancement Pack".