>>I need to un-register MSCOMM activex control for testing.
>>
>>However, after running vfp form which contains MSCOMM control, VFP automatically registers it again.
>>
>>How to prevent such automatic registration ?
>
>Just a SWAG. After unregistering control try to rename OCX.

Sergey,

thank you for this solution. I havent thought this is so simple.
I'm sorry I posted this message twice.