Heraklion1, you must sign your name in posts, the forum rules!.Then can you say what your system specs are.There are many.....many reasons for "crashes". I have not run XP for ages.....but the principle is the same. Have a look at what the system is telling you about why FSX crashed. Then begin the investigation.:( Regards.

Hallo again.Unfortunatly this the first time to me that happens something like that.Usually I am using fs9.I decided to start building my Fsx with all add-on which I have In my library.On of them is the md11 for fs9 and FSX.I bought the combo version from PMDG.So when I completed the intallation with md11 to FSX and I am trying to start FSX is coming the follow message.Flight simulator has detected a problem with a third-party software program(Addon).Name:Pmdgoptions Dynamic Link LibraryVersion:10,0,61355,62Company:<unknown>File:PMDG\DLLs\PMDGOptions.dllHallo again.Unfortunatly this the first time to me that happens something like that.Usually I am using fs9.I decided to start building my Fsx with all add-on which I have In my library.On of them is the md11 for fs9 and FSX.I bought the combo version from PMDG.So when I completed the intallation with md11 to FSX and I am trying to start FSX is coming the follow message.Flight simulator has detected a problem with a third-party software program(Addon).Hallo again.Unfortunatly this the first time to me that happens something like that.Usually I am using fs9.I decided to start building my Fsx with all add-on which I have In my library.On of them is the md11 for fs9 and FSX.I bought the combo version from PMDG.So when I completed the intallation with md11 to FSX and I am trying to start FSX is coming the follow message.Flight simulator has detected a problem with a third-party software program(Addon).Name:Pmdgoptions Dynamic Link LibraryVersion:10,0,61355,62Company:<unknown>File:PMDG\DLLs\PMDGOptions.dllDo you want to run this message in the future,uninstall this program or disable it's ability to start :http:\www.fsinsider.comPlease I am waiting your help.Thanks.BrgdsLoukas GaitanisLoukas Gaitanis