>Sergey,
>Thank you for responding, here is example of the code
>
>oComm = createobject('mscommlib.mscomm')
>oComm.commport = 1
>oComm.portopen = .t.
>oComm.settings = "9600,N,8,1"
>
>It works fine on developer machine but not on client.
>Any thoughts are appreciated
>
>Thanks
>Rob Vaught

Take another look at MSKB#Q192693.
You have to subclass Mscomm control at design time and than add an instance of the class at run-time instead of adding the control.