Thinapp 4.7.3 - How to force MSI installation directory

Hi,

Apologies if this has been asked, I searched but didn't come across anything.

I'm trying to thinapp the VMware Horizon Client 3.4. I'm creating an MSI file and want to have the MSI install the thinapp into a particular directory.

I see the MSIInstallDirectory parameter, but no matter what I put it only installs relative to C:\Program Files (x86)\

Is it possible to install the thinapp outside of Program files?

Thanks for any suggestions

Cheers,

Simon