Ok guys, here is some further stuff I've found out (after spending a couple of hrs troubleshooting this crap, I wonder if Apple will cover my time :>( )LOL
- Yes, it is a networking issue that involves APSDaemon.exe, this is what I think this devil does:
When iTunes starts it fires up a request to APSDaemon to contact the Apple store, why? well i belive that this is when a session is established with some Apple services (remember that you have to "authorize" each PC you run iTunes on? ) I suspect that this is when that happens. When APSDaemon comes back and says: "yup, this pc its ok! the app starts normally, sooooo, if APSDaemon fails (now here is the problem, it will be hard to tell why it fails!), iTunes refuses to run, 'cause it is not authorized!!!
Now remember, this is my preliminary finding, there are several "support" processes that run/stop while iTunes is doing its thing, so more remains to be uncovered!
“Well”, you say, “what is the bottom line?” Well, so far if iTunes stops working, and you want to mess with processes and services, you can try to terminate APSDaemon.exe and hope that iTunes comes back! Now as with all other recommendation from your fellow users (mine included!) you are doing this AT YOUR OWN RISK!!! Good luck!