Netscape Communicator Standard Edition 

Download Communicator version 4.04 for Windows 95 or NT.
Download Communicator version 4.05 for Windows 3.x.
Download Communicator version 4.05 for Macintosh (PowerPC).
Download Communicator version 4.05 for Macintosh (68K).

Netscape Navigator
As a stand-alone product. 

Download Navigator version 4.05 for Windows 95 or NT.
Download Navigator version 4.05 for Windows 3.x.
Download Navigator version 4.05 for Macintosh (PowerPC).
Download Navigator version 4.05 for Macintosh (68K).