Where can I find ports in the registry?

You can find the information on FTDI VCP devices in the registry under the following paths -

 

For Windows XP and Windows 2000:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\FTDIBUS\VID_VID+PID_PID+Serial_Number\0000\DeviceParameters\PortName

 

For Windows 98 and Windows ME:

HKEY_LOCAL_MACHINE\SYSTEM\Enum\FTDIBUS\VID_VID+PID_PID+Serial_Number\0000\PortName

 

where VID is the VID used, PID is the PID used and Serial_Number is the device serial number.

 

A simple application has been created in C++ Builder to identify FTDI COM ports from the registry.  To download this example, click here.