I am having the same problem this year that I had last year with Turbo Tax. When I try to install the program from the CD, I get a 65535 Windows error. Both this year and last year I went through all the fixes from the Turbo Tax site; none work. Turbo Tax technical support likewise could not help me. Last year they pointed me to a web copy of the program, but I need to use the Business version so I can file an estate tax, and that version is not online. I also just tried copying the Turbo Tax CD contents to the desktop, and launching from there with the Turbo Tax CD ejected from my drive, but that won't work either. Last year I had to borrow an older XP machine from a friend, who is no longer around. Ugh! Help please.