I am running Windows 8 x64 Enterprise, and have downloaded the Ubuntu Studio 12.10 x64 ISO. I place wubi.exe and the ISO in the same folder, and run it as administrator. But Wubi still attempts to download the stock 12.10 ISO. The Studio ISO also has a wubi.exe on it, but even that one tries to download the stock image. Is there a way to get this to work? Or does wubi support only stock Ubuntu?
Wubi doesn't support
Ubuntu Studio... yet. There is a plan to support it from
13.04. It's possible to install it through some workarounds, but it's probably only for adventurous users. See ref here (which talks about installing
Xubuntu but the same technique can be used with a caveat contained on the bottom of that post)
Another point - if you have Windows 8 preinstalled, or are booting via
UEFI (i.e. using a
GPT partitioned disk),
Wubi won't work at all.
If you do want to try it out you could see whether there is a
13.04 version of
Wubi.exe available but that would be off-topic for Askubuntu since it's a development release.