I apologize for all the trouble with this.

According to this UFO Extender requires Visual C++ 2008. So it won't work in DOS. The install.EXE is inside the file titled UFO on the X-COM: UFO DEFENSE CD I think you mean directory. Yeah that. I forgot what it was called but yes the directory/file entitled UFO on the CD contains the INSTALL.EXE …

Ok I got the extender from a thread on the steam forums The install.EXE is inside the file titled UFO on the X-COM: UFO DEFENSE CD I dragged and dropped install.exe onto the dosbox shortcut which autoruns the program.

At my local Flea market I came across a copy of X-COM: UFO DEFENSE for $1.00 Cd only. Anyway it'[s a silver and green disc. I downloaded the extender from the steam forums I ran install.exe from the UFO file with DOSBOX. Yet when it asks for a install directory it keeps saying " Invalid path". What …