Actually many XP compatible software apps won’t install on Vista due to security settings. However a lot of older Win95 software runs perfectly well.
There is a huge demand for Vista compatible software. Eventually someone is going to figure out that you can make a ton of money porting applications to Vista.
I never said Vista was not a royal pain in the ass. Most of these problems have workarounds.
please inform me what you cannot install. everything has worked for me. maybe it was some highend proprietary products?