been there, tried that.
I did find a workaround after posting my message.
found it here after doing a google search: your operating system does not support the 64-bit setup of silverlight : The Official Microsoft Silverlight.NET Forums
quite vexing, given all I use silverlight for is the xbox website....
Thanks for the light, it worked, I now have an up-to-date version 5 of Silverlight.
no prob, found that on another thread on the site, figured I'd do my good deed of the year and help.
to the mods/admins, is there any way to get that link to the 32bit silverlight posted somewhere more promanent on the site given the common nature of this problem(namely silverlight 64bit not being compatible with vista64bit)?
The aforementioned windows installer files are "silverlight.msi" and "Silverlight.msp" which you can find in "Silverlight_x64.exe" by using 7-Zip.
the problem there is that I already tried that and the installer refused to run, hence the workaround I posted after several hours digging.
*shrugs* guess we found two completely seperate solutions to the same problem, lol.