Hi,
>> I got the same error message before. The reason I found which cause this error message is, I have Active X control MSCOMM in each of my forms need it. I solve it by storing the reference of >>MSCOMM object in a public variable and let all of the form to access it.

well now I know at least 4 different potential causes of the problem! Deleting foxuser fixed it for me.

Thanks

Harry