I was installing a game and it stopped because it cannot copying/install a .txt file. So I quit installation and try to copy it to the computer. Then it is invalid MS-DOS function, and failed to transfer. Anyone could help. Then I try Daemon Tools, while it succeeded. Is this a bug or something. It is not the first time that happen to me.
I assume, the game uses some kind of a copy protection mechanism. WinCDEmu is a simple image mounting program and is not designed to counteract the copy protection systems.