Yes, it is from Microsoft and was the shell for Windows 3.x. If you have never heard of Program Manager... You probably never used Windows 3.x.
Do you not know how to extract zipped files and copy it to System32? Copy all the extracted files to System32 and SysWOW64! Launch progman.exe after that. Don't do the registry thing if you don't know what you are doing... I feel like you will mess up your computer if you set it as your default shell.
P.S: I might make a video on how to install or simply make an installer for "noobs" like you. Why would you bother trying this out if you don't know that it is (it is from 28 years ago when it was first introduced)? Also, you are on 64 Bit Windows 10, there will be issues with launching app using it.