I'm having this exact same problem. Glad I found this post. Tried the work-around and it worked!!
Adjudicator
I don't have Stardock Central. Just wondering if anyone has seen the 64-bit compatible version of ObjectDock up on there yet. Trying to get an idea of when I can expect to be able to download it as a paying ObjectDock Plus user. Thx.
hahaha, I do exactly that as well. Actually, before an install, I'd move all my skins into another folder... perform the install... delete all the installed skins, and then move mine back in. It works, but I was hoping Neil Banfield or Brad Wardell could post with the command-line option for the installer. I remembered one of them posting it years ago on the Stardock newsgroup back in the 3.x days.
Nope. Problem not solved. When I've got 100 skins installed (I'm sure that's nothing compared to what other people have), and I've just installed a WB update, I don't want to have to sift through my Windowblinds directory (or skin browser) looking for all the skins I don't want that the WB installer put there. Major pain in the butt.
I remember back in the WB 3.x days there existed a command-line option when running the WindowBlinds installer so that it didn't install any of the included skins. I can't remember what it was and does it still exist in 5.x? I pretty much don't use ANY of the skins included with WB and hate that they get installed everytime I update my WB. I'd appreciate it if someone can provide. Thanks in advance!