Visual Studio .NET 2003 will not be supported under Vista. Sounds a bit harsh, doesn’t it? It’s true, though, as Somasegar recently confirmed on his blog.
While I think that’s pretty weak effort (with the bugginess of VS.NET 2005), I think its pretty unlikely that any developer is not going to disable User Account Control anyway. Having said that, running an unsupported application allows Microsoft to ignore any problems you are having.
Let’s hope all the negative feedback they are receiving makes them change their mind.