What makes it so technically challenging to support Visual Studio.NET 2002 and Visual Studio .NET 2003 on Windows Vista?
As those of you who have tested your software on Windows Vista know, some of the changes in the operating system have a particular impact on developer tools given that most users run as an administrator on their local machine. We have made tremendous investments in Windows Vista to ensure backwards compatibility, but some of the system enhancements, such as User Access Control and changes to parts of the networking stack would require substantial work on Vista.