Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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VCD_Get_Focus        Returns focus owner
VCD_Get_Version      Returns version number
VCD_Set_Port_Global  Enables or disables global port
VCD_Virtualize_Port  Virtualizes a COM port