Non SAP Add-On Stopped Working

Hi,

My Non-SAP add-on stops working after few seconds. As I log in it connects, shows successful connectivity massage, then stops. Strangely it runs well at only one user location. In my organisation it runs fine. SAP add-on fine.

sequence is like...

1. Database disconnected

2. Windows error massage "XX stopped working"

3. SAP error "Add-on Failed"

Thanks,

Subodh.