Windows 3.1 RC3d

Windows 3.1 RC3d is mentioned in an internal Microsoft document from 1992-02. It is part of the Release Candidate stage and, like other RC builds, is not referred to by its actual build number, but is instead simply called "RC3d" everywhere.

According to the document, several third-party applications were tested on this build. Additionally, the following issues with this build were observed:

DDEML - BUG# 15245, Execute Strings not Freed 15298, PASTE LINK: From Q+E UAEs everytime GDI.EXE - Bug# 10343 - font substitution bug TT memory fragmentation bug sidebearing bug in rasteriser Bug# 15335, ATM 2.0 messes up rotated T2 when printing to HP LJ          SetBoundsRect GP-Faults KenBy's Debug GDI fixes XLAT850.BIN - Bug# 15255, AnsiToOem mapping bug SPC2.DRV - Bug# 15200, Epson LQ-570: Enevlope printing from bin 1 broken
 * PSCRIPT.DRV - Bug# 14946, HP LJ III5i driver does not correctly change bins
 * SETUP.INF, WIN.SRC, USER.EXE - Bug# 14810, JustWrite problem under RC1
 * PROPRN24.DRV and OKI24.DRV - Bug# 14904, Problem with ProPrinter in draft mode