Over the next few years, I kept bumping into Neko across subsequent Windows flavors - Windows 95, Windows 98, Windows ME and Windows XP, and IBM OS/2 Warp. We had eventually parted ways somewhere around the tail-end of the last millennium. Neko had remained with me as a sweet memory.
That is, until I discovered this awesome post by neozeed. The author of the post has done all the hard work in finding Neko, including making Neko source-code available to the public and bringing him back on 64-bit Windows 10.
I downloaded the zip archive containing the source code and compiled it using Visual C++ 6.0 on a Windows XP 32-bit appliance. There were no compilation errors for the Neko executable and just two ignorable compilation warnings for the Neko configuration utility "NekoCFG".
Say hello again Neko! I missed you.
Here is my Neko build directory download.