Just thought I would share as I just found out myself. Hope I am not repeating what someone else has posted. Downloading now, yay Soulstorm came in handy for something.

THQ has confirmed that the Warhammer 40,000: Dawn of War II early-access multiplayer beta will begin at 7:01pm EST (12:01am GMT).

The beta will feature five multiplayer maps, and all four of the game's playable classes: Space Marines, Orks, Eldar and Tyranids.
Owners of Dawn of War - Soulstorm will be able to download the beta directly from Steam. The beta will open to all fans a week from today on January 27.

Instructions for entering the beta follow:

1. To access the DoW II Beta, first log into your Steam account.
2. If you do not currently have a Steam account, go here: http://store.steampowered.com/about to download, install, and create an account
3. After you are logged in to Steam, go to Games > Activate a product, then enter your Soulstorm key.
4. After the activation, you'll be able to download and play the beta


Owners of the Steam version of Soulstorm should already be entered.