One another thing; Initially, when I discovered these errors - as a ran SFCFix (after SFC) just for the fun of it - I tried to search this file MSDTC.LOG but it didn't even exist on my system. Weird.. So I created one. As empty file and I thought that maybe OS will eventually stuff it with the correct data. But fixings still showed errors. So then I checked my laptop and that MSDTC.LOG was there so I opened it just out of curiosity at first and found out that okay.. the data in it isn't at all so trivial and clear. So as I have installed my laptop and PC from the same DVD, I tried to be utterly smart and just copied that file from my laptop to my PC to the correct directory, rebooted the PC, and ran SFC first, and since it showed errors, then I ran SFCFix and yyyyyep... It still notified the corrupted MSDTC.LOG. So I didn't include this file on my post's attached ZIP-file since I understand now that its completely unique depending on the PC hardware etc.
So if that's of any help, I just wanted to tell You this.
-Tommi