[_RAAF_Smouch]

I have no problems with W7 64bit Premium.

Initially it installed fine to the default file path with UAC turned off but when I ran the game I found that I have no sound from my wingmen or ground control. Once I moved the whole game folder into it's own C: folder I have had no problems with it or HL.

And if for some reason it won't fully install I once had this happen (in XP) as well and this is what I had to do to get it to fully load onto my machine:

From Micrsoft Support Article ID: 314810

Method 2: Change the memory settings for installation
To change the memory settings for installation, follow these steps:

1. Click Start, and then click Run.
2. In the Open box, type msconfig, and then click OK.
3. On the BOOT.INI tab, click Advanced Options.
4. In the BOOT.INI Advanced Options dialog box, select the /MAXMEM= check box, and then change the setting to 256* (or lower if your computer has less RAM).
5. Click OK to close the BOOT.INI Advanced Options dialog box.
6. In the System Configuration Utility dialog box, click Apply.
7. Click OK to close the System Configuration Utility dialog box.
8. Click Restart to the following message:
You must restart your computer for some of the changes made by System Configuration to take effect.
9. After you restart your computer, install Office as a Complete Install.
10. After you install Microsoft Office, follow steps 1 through 8 to clear the /MAXMEM= check box.

At step 9 installed 1946 and then went to step 10.

* = I had 2046 in the box, I lowered it to 1024.

sorry I have somehow sent this off thread but it did help also installing another game by another company onto my machine in W7 as well