According to this history written by one of the founders they were given a pre-release copy of Windows to get an early heads up on porting, but the engineers ge

According to this history written by one of the founders they were given a pre-release copy of Windows to get an early heads up on porting, but the engineers generally preferred to work with DOS: http://www.wordplace.com/ap/ap_0intro.shtml http://www.wordplace.com/ap/ap_0intro.shtml