Help request: Installing IL2 under Vista

[KOM.Nausicaa]

Hello,

I just tried to install IL 1946 on my new laptop from the DVD. It is a Dell XPS 1330 (newest model) with a DVD drive, running VISTA Home Edition.

Following happened: The computer shows IL2 1946 as being present in the DVD drive, and asks if I trust the program to be installed. I click YES. Then nothing happens. I tried this multiple times. I am running the computer as Administrator, I also right-clicked on the installer exe and choose "run as Administrator", but it doesn't help. I have the feeling that VISTA blocks 1946 somehow, but I don't know how to disable this. I tested the DVD drive and even installed other games, so the hardware works ok I think.

Any help would be very much appreciated,

Thanks,

Nausicaa

PS: During installing attempt I was not connected to the internet. Is this necessary?