OS/2 1.1 build 4.72

OS/2 1.1 build 4.72 is the build of OS/2 1.1 that was included with versions 1.03 and 1.04 of the Microsoft OS/2 SDK. It is the earliest known build to include the Presentation Manager interface. OS/2 Museum posted several screenshots of this build in 2011, and uploaded floppy images (in both the 3.5" and 5.25" variants) to the Internet Archive on 5 December 2022.