Warlock – “Expansion” [4th campaign, 2nd mission]

Hey everyone, could you please help me out? I reached the Warlock campaign in the expansion pack of Heroes. I went on a business trip, and when I came back, I found out that my wife had reinstalled Windows. And now my progress is gone. I don't want to start everything from the beginning. Is it possible to start playing Heroes from the 4th campaign (are there any patches or mods for that)? Or is there a way to restore my progress?