VSPD All-in-one - Version 1.0 VSPD All-in-one combines 3 OEM products. Virtual Serial Ports Driver XP creates 2 virtual serial ports in system which are virtually connected to each other and can be used as if they were real serial ports. VSP ActiveX Control gives full control over virtual serial port. Serial Splitter creates virtual serial ports with simultaneous data transfer from real ones. OEM license lets you use, reproduce and incorporate these products in your software.