After reading through the previous thread about getting Winter Assault to work and having no success and then reading this post, I have done the following:
I have downloaded the
mini image linked in the previous thread and mounted this with Daemon Tools v3.47.
I have Daemon tools installed with a driver name that is different from the default (it asks for the driver names when you install it). I don't know if this makes a difference or not.
I also have the Daemon Tools virtual drive set up so that it's the first CD/DVD drive on my system (I drive). My real DVD drive is set up as J drive. Once again I don't know if this makes a difference, but it helps ensure that the Daemon virtual drive is the first one that the game looks at when searching for the game CD/DVD.
Lastly I have renamed the file Disk1Check.EXE found in the main game folder to Disk1Check.EXE.bak so that the game cannot run it.
Upon running the Winter Assault exe file (W40kWA.exe) it sits there with a reading CD icon for about a minute and then finally loads. Note that on my machine the shortcut to Winter Assault that was placed on the desktop does NOT link directly to the exe. I had to create my own shortcut to do this.
Your mileage may vary.
This is basically what Maxtor102 just did, only I'm using the mini image, and not the full Alcohol image.
Post Edit: As a final note I also have the v1.40 Dawn of War No-CD exe installed. I don't think this has any bearing on getting Winter Assault to run since it has it's own exe, but I thought it was worth mentioning.