This Zip file is actually three installations for the NEC 251 CD-changer under Win95. When unzipped, you will see the set of files for the first installation and 2 additional zip files which are separate installations with different characteristics. The first (NEC25195_2.zip) has a setup.exe program. The second (NEC25195_1.zip) has the file nechnger.inf on which you right click and choose install. The third (UniChanger.zip) is a self-extracting universal IDE-Changer from NEC.