Hi hachiman,
Before you try this see if it is in start, run, type msconfig, click on startup tab at top. See if its checked.Uncheck it , hit apply, then ok. Reboot
Try this:
Open regedit
go to : HKEY_CLASSES_ROOT\CLSID\{F3A614DC-ABE0-11d2-A441-00C04F795683}\LocalServer32
Back up this key in case you want to put it back
Dlete the entire line to the path MSMSGS.EXE from the "(Default)"String value:double click on it ->delete the entire value data line->click ok or enter
close regedit
It should stop loading Hope this helps!
TW