Hi John,

Try here http://support.microsoft.com/support/kb/articles/Q154/7/41.asp or do a search in MSDN for "mscomm binary". gives a basic example for binary transfer.

>Hey Everyone,
>
>In the remarks section of the OutPut property of the MSCOMM control's help file, it says:
>
>To send binary data, you must pass a Variant which contains a byte array to the Output property.
>
>How do I do that from VFP? Anyone know? Thanks a lot,
>John