Here is a step-by-step instruction on how Virtual Serial Port ActiveX Control should be installed on the target machines (you can include this as a part of your software installation). But, first of all, please, install Virtual Serial Port AX drivers.

Quiet Registration for the SDK License Owners

To redistribute Virtual Serial Port AX Component without any limitations, you must own the SDK License. Only the SDK License grants you commercial royalty-free redistribution rights.

Quiet registration procedure (see below) is used to register on the end-users’ machines Virtual Serial Port ActiveX Control, incorporated into your software.

The following files should be copied to the target machine’s temporary (permanent) installation directory. These files can be found in the folder where you have Virtual Serial Port ActiveX Control installed.

VSPort.dllVirtual Serial Port ActiveX Control itself
VSPort64.dll64-bit version of Virtual Serial Port ActiveX Control


Note: If you develop a 64-bit application, use VSPort64.dll, which is supplied with Virtual Serial Port ActiveX Control.

To register on the end-users’ machines Virtual Serial Port AX, incorporated into your software, include the following command into the code of your project:

regsvr32 vsport.dll /i:"Name#code"


where “Name” is registration name and “code” is registration code. For example:

regsvr32 vsport.dll /i:"TEST TEST#xxxxx-W9FC5V-31AXAX-F884EC-WN7G92-X3VXEE-21CFEE-524E94-651198-2A84FA-663C11-xxxxxx"