RuMSX was one of the first MSX emulations for the 32bit Windows platform. The main-problem is that no one of the existing emulators is really complete. To finish such a project with success it is necessary, that this emulator is FreeWare.
In meantime many other Windows based emulations have been arrived. Regardless the development of RuMSX continues and I attempt to complete it's set of its implented features as well as introduce new ideas for other developers...

The current version of RuMSX can be found on my download-page (see below).

Minimum requirement:

Windows 98 or Windows 2000 Recommended: Windows XP Mouse & Joystick FM/MIDI and Wave capable sound-card Video capture card

• Japanese RuMSX support site
• Japanese RuMSX SCSI support site

• Installer now supports the Windows XP "Open With" feature. This is different to prior versions, where only "RuMSX" and "Disk-Manager" could share the file-extensions. Now potential problems on Windows XP and existing problems on Windows Vista are resolved in changing this behavior.
• Windows 95 / Windows NT 4 is no longer supported, new minimum requirement is Windows 98 / Windows 2000 and Internet Explorer 4
• Disk drive letters have been assigned incorrectly for rare configurations (e.g. HB-F1XDJ) where the Disk-ROM was located in an expanded slot with secondary slot-id different than 3. E.g. FILES accessed drive "C:" instead of "A:" (this bug was new since RuMSX v0.31)
• Added "CAS" motor indicator (in addition to FDD, HDD, CD)
• Added "Preview" support for .RuMSX save-state files
• Some interlaced modes were not rendered correctly
• Fully implemented scanline interrupt handling "F1 Spirit 3D special", "Golvelious 2", "Bombaman" and many more games are working now!
• Fixed incomplete detection of 5th/9th sprite, so WAVES.ROM does also work now!
• Fixed behavior of VDP TransferReady flag, so "Andorogynus" does no longer have defective graphics
• Fixed Printer-emulation: subscript is now correct, printing with resolutions > 300dpi is better sized
• Added display of print-progress to statusbar (at least for emulated MSX/Epson printers)
• Fixed problems when RuMSX is started for the 1st time (MSX2: logo rendered incorrectly, ...)
• Default-directory for print-file and debug-output file is no longer %TEMP%, "%TMP% or C:\ but "My MSX" or "My Documents"
• Fixed autodetection of "64 in 1" ROM, which was unfortunately ignored in the ROM-database.
• Corrected floppy-emulation to MSX Disk-BIOS semantic (all memory-aras except page 1 are unchanged during PHYDIO)
• Keyboard click is now shorter (better match to real MSX)
• Options "Use OPLL" and "Use multimedia timer" are now selected by default
• Removed several hardcoded english texts (startup, shutdown, disk properties, ...)
• Added option to remember last used Joystick
• Many fixes to the configuration editor:
  Configurations with an "Unknown" locale were not correctly saved in prior versions;
  Configuration is handled readonly if no change-permissions are given (Vista/XP/2000/NT4);
  Readonly-configurations are displayed with disabled controls;
  New configurations will be saved into "My MSX\MSX computers\RuMSX configurations" (if available);
  New configurations are automatically added to the list and selected by default
• No "Choose configuration" (initial) in case of read SaveState or Preview
• supplemental SETUP.EXE is now fully supporting Windows Vista
• A lot of internal changes for WIN64 compatibility
• Added italian localization (translation incomplete in this release)
• Added support for "Playball" samples. If available they should be provided as samples\playball\playball_*.wav files in the RuMSX folder.
• Warning for overriding sensitive data applies to Win95/98/ME only (volume tracking driver) and is therefore displayed on such systems only!
• Moved documentation of R800 extensions from the WebPage into the manuals, where it should be persisted.
• Added SPLITROM.exe command-line utility
• Added disclaimer as requested by BAZIX - MSX logo policy
• BugFix: number of CPU cycles per screen-refresh was reversed for 50Hz and 60Hz (noticable with NEMESIS1)
• Known bug: Interrupt timed games such as "Nemesis1" might accidentally speed up for some duration.
  Workaround: see "Known Problems" in RuMSX-help.

• Language-Pack for Chinese/traditional added (2008-07-24)
  Extract the file into the RuMSX installation directory (no installer provided)
• Language-Pack for Spanish updated (2008-09-11)
  Extract the file into the RuMSX installation directory (no installer provided)

The correct functionality of the software being spread on this website is not guaranteed by MSX Association nor Microsoft. Both parties do not accept any responsibility concerning the results of using this software. Please use this software at your own risk.

On this place I want to thank the authors of really "free" code and/or their useful support! For information about these peoples refer to the about-box of the current RuMSX release.
(in this list you can select a member and click "Details..." for more informations, as homepage and e-mail adress...)

Because of several reasons I'm not able to publish the full source at this time. If you still want to have a look on partial sources of RuMSX you can download the limited release for RuMSX V0.41 here!
If you want to add support for other languages (translations) please contact me first! Templates and basic guidelines are provided for reference only.

• MSX homecomputer page
• Download