Please, be aware:
there is NO backward compatibility !
Make the copy of everything you wrote,
in case of something wrong during conversion.
It would be a lot of :-(
Make sure, that Multimedia AddIn is not assosiated with original scripts. 9.x do not support Multimedia anymore and Repository would be corrupted. It will be converted. You will be able even run them. But as soon as you start editing TestCase, QTP will be frosen. It happens in any attempt to edit any function in that TestCase.
Even Wait(1)... :-(
Mercury did not find solution for this so far.
Our work around:
Create new Repository in QTP9.1 and repoint TestCase into it.
Please, share with everybody the issues during and after conversion.
It will protect other guys, who is going into this process...
I have some scripts which were created using QTP 9.0.
But i have to edit and run those scripts using QTP 8.2.
When i tried to open the scripts in 8.2, It was throwing "unexpected file format error".
please let me know regarding this.