If you don't know already, Issuse 6 of City of Heroes contains the entire City of Villains game. This guide will teach you how to launch the CoH client with the new CoV theme.
1. Locate CityOfHeroes.exe, you can find this file in the folder where you've installed the game, the default is C:\Program Files\City of Heroes
2. Create a shortcut to CityOfHeroes.exe, name this shorcut "City of Villains"
3. Right click on the shortcut and choose "Properties"
4. In the Target field,
append the following text: (where
_ is a space)
_-project_coh_-cov
5. Now your Target field should look something like:
"C:\...\CityOfHeroes.exe" -project coh -cov
6. Click on "Change Icon..." and select the CoV icon
7. Press OK to close the properties window, copy this shortcut to your desktop (or where ever you like)
Now you can use this new shorcut to start the game as CoV!
Please note that this also bypass the updater, if the game yells at you and say something like "incorrect version", it means there is a new patch, and you will need to run the updater first.
This shortcut changes the "theme" (graphics and background music) of the login screen, so it doesn't matter if you want to play a hero or a villain.
Enjoy!