All,
Please refer to the following link for more information about this issue. The originator of this post is also at that thread: dwmapi.dl
Apparently this is a bug within Comodo and it should be OK!! to allow these global hooks.

Oh, ops, I guess I should have done it by myself. Well, actually, format after format, I have lost the list of all the places where I posted for help about that.
Anyway, till the last time I visited Comodo Forums there were no definitive answer, and I do not know why but I never received a mail to alert me of these last answers.
Anyway, it is a long time that I stopped worrying, and I agree that everything makes it seem just a bug, not sure if in Comodo (it should be clearer where Comodo takes the names of the files from. I mean, when COmodo alerts of Dwmapi, how does it know that it is called Dwmapi? Do you understand? So, possibly, Comodo is just reading something in Vista, and the bug about the wrong name is in Vista, not in COmodo).

I'll try to remember where else I posted, and post the link you gave.
It is the best thing.
Thanks!