I got bored and made an installer for Graal 5.12 a long time ago, which included an uninstaller.
Here's a video of it.
graal installer & uninstaller Video WMV 720x480.zip
Having an uninstaller to remove graal without any traces would be nice.
Edit;
This contains an exe file compiled based on Jerret's (*fowlplay4) bat file, it does exactly the same.
Graal Uninstaller.zip