> PUBLIC ComForm
> ComForm = CREATEOBJECT('Form')
> ComForm.AddObject("Testcom","Olecontrol","MSCOMMLib.MSComm")
> ComForm.Testcom.CommPort = 2 && Use Comm2, The second Serial Port.
> ComForm.Testcom.Settings = "14400,N,8,1" && 14.4 Kbaud, No Parity,
> && 8 data Bits, 1 Stop Bit
> ComForm.Testcom.PortOpen = .T.
> ComForm.Testcom.Output = "ATDT555-1234" + chr(13) && Dialing the number
> * The chr(13) is needed to complete the modem command sequence
> ComForm.Testcom.PortOpen = .F.
> ***** End Code *****
>
>I've made some changes (commport should be 1 instead of 2, and baud rate
>should be 9600) and the result was absolutely the same error message: "OLE
>IDispatch exception code 0 from Mscomm: could not set comm state, there may
>be one or more invalid communications parameters..."
>
>There is something to do with security options in Windows 2000? Or there is
>some problem with this piece of code?

I can't duplicate the problem either, but I don't have anything installed on COM1.

As I asked before, does your manufacturer have an OPOS control? If so, does it work, or do you get similar behavior?