Windows 3.1 build 127

Windows 3.1 build 127 was released on 11 June 1994 and was officially called "Windows 3.1 English with Farsi support", as it includes support for both the English and Farsi languages, and is the only version of windows to ever be released in iran, where it is still actively used.

It is notable for being the only build to require a security dongle in order to install the OS, which features two buttons beside the control menu that switch languages from English to Farsi (and vice versa). The Restart Windows option at the end of Setup makes a return after its initial absence in Windows 3.1 build 068. Several DOS applications exclusive to this build were added, which primarily consist of translations of existing applications for the aforementioned languages; these applications are located in a seperate program group named "Farsi DOS Applications".

Bugs

 * A general protection fault may occur if the Setup Applications step is not skipped, causing installation to fail.
 * Without the aforementioned security dongle (which has not been emulated yet), setup will freeze when switching to GUI mode. The only known solution is to replace the  (found on disk 2) with a version from an older Windows 3.1 build (although doing this may result in text corruption). BetaArchive member roytam1 released patched files that bypass the security dongle requirement.