Fullmetaljacket1991

Hi all, I have downloaded CnC gold and Red alert 1 from cnc net, both work online and skirmish perfectly yet when i install and to try to run the main campaign, it says couldn't launch main executable, am hugely gutted as an avid fan of the series, any suggestions please ? UPDATE I deleted ddraw.dll in the properties folder, campaign works but lags then when i alt tab it out the window is stuck and i can hear the game just no picture proper annoying now ! Running this on HP Pavilion notebook 2GB RAM 30GB HDD HD graphics internal up to 1028MB Windows 8.1 cheers