Problem in Exporting Application object into AOT file using APPXPORT Utility

Hi All,
I was trying to Export an application object into an AOT file using APPXPORT Utility. I believe i used the syntax provided in the utility description but i cannot export it.

The syntax for the utility is,

APPXPORT treename objectname filepath

Now the object i need ed to export is MY-OBJECT and The Statement i used was,

APPXPORT.EXE MY-TREE MY-OBJECT.MY-APPS.Apps.MY-TREE C:\jana.aot
But i got the Error message "Exporting...Export error -601 (0xFFFFFDA7)"

Kindly guide me on how to specify the object name in the syntax( I guess i have a problem in specifing object name in the syntax ). I tried it different formats but no use.

Thanks in Advance

JanaGokul@gmail.com