as I can see, installing WPI wizard to run from svcpack, doesn't work properly. It can't read OSLanguage variable trough WMI, and throws javascript error. I'll try to use the other method.

P.S. I didn't foud a guide of how to use WPI properly and maybe I'm doing something wrong, so an installation & usage guide would be appreciated.

Thanks

I've noticed that RyanVM Post SP2 update pack make Windows installation to skip last steps, and locks the hourglass on the screen. Is RyanVM Post SP2 Update pack compatible with WPI 6.3?

I use them both without problem.