Resolved it myself now. This one goes to the Windows oddities instead of
blaiming Digital Image or the installer.
My CD-RW drive usually has the drive letter R: assigned to it but after
investigating the log outputs and various other stuff of the Digital Image
installer I found out that it makes weird drive letter assumptions for some
lines in the log. Having the installer trying to install to C:\ didn't really
go as it should have apparently, found some weird lines containing F:\
aswell.. Not that it really explains the weird error message (first post)
which has no logic in it.
So I've been messing around with my driveletters here now and dismounted the
F: drive, changed my cd drive from R: to W: and now it finally installs.
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