@viva
I also bought Feeble files from GOG although I already have 2 boxed versions - and it worked perfect for me.
As for Tex Murphy - how about go for all the Tex games even though you have them just to support those lovely boys behind them, since they have plans on another Tex Murphy game?
I know I don't mind paying for a hassle free version of each of them even though I already have them.