To continue to play a Campaign in DCG after your PC has been shut down, simply start campaign.exe, then start MoW (or MoW:As if you are playing that version). Then in the in-game menu, press "Single Player", "Select Mission" and then "Dynamic Campaign" and lastly, press "Dynamic Campaign Mission" and you will be at the beginning of the next mission in your on-going Campaign.
However, as soon as you feel that you want to stop playing DCG (cant understand why you should want to do so though...
), always save as "Result" (or whatever you named your save game file as in the setup phase of installing the mod) and then quit both the game and campaign.exe.
You can read more about how to play, setup, etc DCG at our MoDDB section,
http://www.moddb.com/mods/dynamic-ca...-dcg/tutorials and if reading text makes you want to cry, you can always look thru our tutorial videos at
http://www.moddb.com/mods/dynamic-ca...tor-dcg/videos.
We are also more active at moddb than here at 1C forums.
~Zeke.