Okay guys, I tried everything, I saw another post about this but none of its guides worked.
so now i'll give u a precise action of what i did:
1. Inserted CD1 of Red alert into the DVD/CD drive.
2. Cancled the auto run and went into explore the disk.
in this stage there were to posts with too ways, one way was like:
Go To Setup95 Folder (i went to it) and right click on setup.exe that set the complitability mode to win95 (did so) than run the install from that file. here is the problem with that: when i run the installer from that file a DOS window opened and says that the installation could not find Setup.mix (wich is found to be in the folder Setup and not in Setup95) so i tried doing the same with the Setup.exe file in the Setup folder and the same error came.
now for the second guide,
I went to explore the disk and right clicked on Setup.exe that changed the complitability mode to windos 95 and runed the file. it was loading normally the wizard (windows is prepearing the install wizard wich will guide you throught the installation) and when it finished prepearing (100%) it gave me that error: Windows 5.1 Is Currectly Running. This version of Red Alert is a Windows 95 only product.
any ideas why isn't this working?