Since I am not a developer, I am not able to analyze your dump file. I would recommend you to uninstall the game using this program:
Revo Unninstaller:
http://www.revouninstaller.com/start_freeware_download.html
It's completely trustworthy!
After you uninstalled it, reboot, and then install it again.
Let me just try to understand it better. You downloaded the game from Gamersgate, not VSTEp website?