This utility by Stardock seems to do the trick nicely, just install it then click on it to run it, it will bring up a list of all your Stardock products and you can choose to remove the ones you want..
Just keep in mind that it will remove everything that is attributed with the product you are removing..so save any downloads/skins that you want to keep before running it..
https://www.stardock.com/files/odnt_zapper.exe
Zero.