VBS Printer script changing default - how to stop it?

Hi.

I'm using a VBS logon script to install 8 printers using objNetwork.AddWindowsPrinterConnection. This is working fine, however each time it runs when the user logs on, the default keeps changing back to the first in the list of 8 printers in the script. I have specifically left out the SetDefaultPrinter option as I want people to keep their own choice of default.

I've tried searching for a way to stop this happening but can't find anything. Does anyone know how I can stop this script from changing the default each time please?

Any help is hugely appreciated.

Thanks!