Windows Vista Home Premium 64bit and IL2 1946

[Skarphol]

Hi!

Iv'e just built a new rig, and chose to use Windows Vista Home Premium 64 bit as operating system as I wanted to have the possibility to use more than 4 GB of RAM later.
I haven't gotten longer than to install just Photoshop and then I should install an older game I have, The Longest Journey, but that wouldn't install. Got an error message, but can't remember what it was.
Then I tried to install IL-2 1946 but it wouldn't install either. I didn't even get to the part where you chose where to install the game. After running "setup.exe", nothing really happens, exept that I can hear the HDD work, that's all. There are no warings or error-messages.
Is it a problem with Vista 64 bit and this game?

Skarphol