|Experts in car diagnostics since 2001|
Installing VAG-COM 409.1 on Windows 7The shareware version of Ross-Tech's VAG-COM package - version 409.1 - was written in 2004, and so was never designed to work with Windows 7.
Ross-Tech have since released VCDS-Lite, which is compatible with Windows Vista / 7, and so is a better option.
However, should you still wish to use VAG-COM 409.1, it can be made to do so if installed correctly, using the steps below.
Please note these instructions are only intended for use with our own Gendan brand KKL interfaces, and we cannot guarantee their suitability with other cables. To purchase one of our cables click the link below.
If your car is a 2005 or newer model, we recommend the full version VCDS package instead.
Stage 1: Install the USB drivers for the interface
To get your interface up and running, you need to install software device drivers for the USB interface.
If you are installing the package on a PC that is connected to the internet, Windows 7 can automatically locate and install suitable drivers via Windows Update.
...and then another message when the installation is complete...
If the PC you are installing on is not connected to the internet, you will need to download the drivers via another PC and install them before connecting the interface. Windows 7 compatible drivers are available here:
Stage 2: Verify the port settings
Once the drivers are installed, you need to determine which COM port has been assigned to the interface by Windows. To do this you need to go into the Windows Device Manager.
When the 'System' box appears, click on the Device Manager link on the left hand side:
Then when the Device Manager window appears, click on the arrow next to "Ports (COM & LPT)" to see which COM port has been assigned to your interface - it will show as a 'USB Serial Port':
VAG-COM 409.1 can only connect to a COM port between COM1 and COM4.
Then click on the 'Advanced' button - this will show you a list of all the COM port numbers you could assign to the interface. Select a port number between 1 and 4 then press ok (if possible choose one that is not shown as 'in use'):
Once that is done, click ok until you are back to the Windows desktop.
Next you need to download VAG-COM 409.1 from the Ross-Tech website:
Once you have changed the installation location, click install, and wait for it to complete installation. The installer may not give a confirmation window - it may just disappear when it is finished.
Finally there are a few changes you need to make to get the software up and running.
Click on 'Apply', then 'OK'.
That should be all the preparation done. The final step is to open the VAG-COM software by that shortcut, go into the Options page, then select the COM port your interface is configured on:
Once you've selected the port, click Test, then OK. You should now be able to use the software.
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