>OK. It turns out that the problem might not have anything to do with PC-Anywhere (or did it?) The whole problem was a tiny st*pid checkbox that I knew it existed but completely forgot about it and I NEVER saw it mentioned in the HUNDREDS of articles I read about COM+ and "Access denied" error I read, go figures. For others that might face the same problem, just remember to go to Computer Management -> Component Services and then expand the tree to see "My Computer" in this "Component Services -> Computers" branch, then right click on it and select properties from the menu. Now go to the "Default Properties" tab and check the "Enable Distributed COM on this computer" checkbox. Yes, now it is easy to understand what was the problem, but it was not as easy as one would expect to find it :( Of course now that I know, if I google http://www.google.ca/search?num=100&hl=en&q=%2B%22access+denied%22+%2B%22enable+distributed+com%22&btnG=Search&meta=lr%3Dlang_en%7Clang_es there are hundreds of
>places that tell you to do so. The other mistery is why just a handful of computers had this checkbox unchecked, like a dozen out of 200, so it might be that PCAnywhere unchecks it?

Very likely PCAnywhere did it, in our case: http://www.niakwa.com/instguid/nt/common_problems/user_rights.htm