Windows 3.1 build 047

Windows 3.1 build 047 is an unleaked build of Windows 3.1, mentioned in internal Microsoft e-mails from September 1991.

The e-mails discuss an issue with DR DOS 6.0, this version of Microsoft Windows 3.1 and SmartDrive (codenamed Bambi) when using the  command, resulting in invalid characters on screen. In addition,  found more than 100 files with errors, namely cross-linked files, invalid clusters, as well as invalid and incorrect lengths.