Install Dll To GAC Through VB Install Script?

my vb experience is fairly limited - I've only used it when supporting legacy applications or for small tasks so apologies if what I'm asking seems simple. I wrote a small vb install script which creates a new folder on a users desktop, copies over relevant files from the install folder to the users new folder and creates a shortcut on the users desktop.

This works great for giving stuff to QA to test. However, there's one dll included in the install folder which is also in the users GAC. The code looks in the GAC first for this dll and only looks in the install folder if none exists in the GAC.

What I want to do is include a line in my install script to copy this dll to the users GAC as well as copying it to the installation folder.Is there anyway to do this in VB? I did find the following on one of the MS sites for installing into the GAC gacutil /i a.dll

Is it possible to run this through VB or is there a cleaner way of doing this?