When trying to install either the current Hyperion Driver or the Vinyl Audio Driver I get error 0x80040707 followed by "Acces denied". After some research, I have the impression that this is an InstallShiled issue. I get the same error when I try to start the uninstall routine for the previously installed VIA Driver Platform.
The much-cited link
http://consumer.installshield.com/kb.asp?id=Q108167 does't help, all the pathnames are correct in my registry. Installation/uninstallation of other programs works fine. Starting Windows in protected mode doesn't help either; installation fails, and uninstall of the VIA Driver Platform seems not to be allowed in protected mode.
I recall I might have installed the previos VIA drivers under another user account that meanwhile has been deleted from my computer - could it be that VIA uses user-specific registry entries or places files in a user's personal profile folders ....?
I'm using Windows XP Home SP2 and yes, my account has administrator rights.
It's a nuisance, and seems to be so for more than just one user.