Windows 3.x/3.1 RC3a

This build is mentioned in Microsoft antitrust document PX01251 from February 1992.

The document says the following about this build:


 * SYSTEM.DRV - Setup problem on DOS 3.1 - Bug #14863
 * EGAOEM.FON - change resolution to 72*96, font mapping problem for terminal font
 * VGAOEM.FON - change resolution to 96*96, font mapping problem for terminal font
 * WIN386.EXE - Bug #14413, invalid VxD dynamic link call
 * ScreenSavers - Change font from HELV to MS SSERIF
 * SMALL*.FON - mark as 3.0 compat
 * DRIVERS.CPL - MMBug #6149, prompts to reboot if driver is already present
 * GDI.EXE - WinProj 1.0 divide by zero trashes Windows
 * *.HLP - Recompiled with the new HC.EXE
 * KRNL286 and 386 - Bug #14975, DBWin crash w/output to COM1 at app exit; #14976, exit Windows after app exit, DBWin

Both RC3 and RC3a are mentioned, so it is unknown whether these refer to the same build or if RC3a is merely a recompile of RC3.