hi umberto,
first , thanks for your help ! i am sure that cyvr is good as your fifferent opus !
i will clarify this a little more so we understand what happened :
a few hours before the incidebt i bought KDEN , KIAD ,and KHPX from flightbeam and installed and tried them with success !
then i bought CYVR and KJFK from fsdt.
here is the situation ! until now everything is running smooth with all programs or games and not a single crash with any hardware part.
so , now , i then installed CYVR ( just installed ! ) and tried to launch fsx...i can't say certainly now ,
if at that moment fsx alreasy crashed because i didn't expected a problem to arise. it is possible it did already ...but , lets say fsx did not crashed yet ,
i know that i never actualy launched CYVR , i launched fsx , entered into the addon manager and started the registration process...
i was not in windowed mode, btw , ...i followed the registration process untill the activation phase ( on the desktop of course )
AND THEN... when i clicked the last "OK button" i can't remeùber exactly if fsx made a CTD or if i succeded to re-enter fsx ...BUT...
Now , even if i was indeed inside fsx at that time , i got out to REOPEN fsx AND then try CYVR !
IT IS PRECISELY at this moment that fsx started repeateadly to crash with the error message (Exception code: 0xc0000005 )
after investigations , i saw that i am not the only one with the same issue...IT IS NOT THE OPUS which create this problem ,
it seems ,to me,to be related with an installation issue within couat , addon manager
But , like you said it might be the antivirus ( mcafee , for me ) , i will try what you said about the bglmanx files and tell you what.
Also , what do you think if i uninstall couat and the addon manager ? if so , do you recommand a specific way to remove them ?
THANKS AGAIN VERY MUCH FOR YOUR HELP !!!