Gens is a Sega Genesis, Sega-CD, 32X emulator for Windows.

• Fixed a display corruption/flickering bug with DirectX that would often occur when switching between windowed and full-screen.
   
  
• Fixed a bug in regards to restoring windowed state (minimized/maximized/etc) when switching between windowed and full-screen; sometimes Gens would not switch out of full-screen properly.
   
  
• New build process for win32 version, using MS VS.NET (VC70) with performance optimizations. Resulting binary is larger, but runtime performance appears better. Probably runs more smoothly on slower machines.
  

» Get it here.

» Gens homepage.

DSemu is a GBA emulator & soon to be DS emulator for Windows.

"The ARM instruction validator that mic's working on grows all the time. It has 4 screens now! And after a bit of hacking (most notably, fixing rotated-operand LDR to actually rotate the carry in for RRX), I get green lights across the board. I've been assured that Gebea and sGBA do just as well, though, so I still have better competition.

 

I've packaged the all new ARM-wrestler ROM into the download Zip, so head over to Downloads and try it out."

» DSemu homepage.

EmuZWin is a Spectrum-128K/48K emulator for Windows.

• Net Play developed more.
   
  
• Keyboard-separated games also are supported and it is possible to play the same game from several client PC's with running emulators.
   
  
• Automatic switching rules (for time-separated games) can now be set very easy, there are no programmer skill required at all to setup a scenario). Simple example of such scenario provided for BATTY, just load it and try.
   
  
• Compression (UCL and LZip) also are supported.
   
  
• Hidden Moves mode made hidden also for Direct-X full screen.
   
  
• Keyboard state now provided by the server rather then restoring it while "replaying" frames like in Action Replay.
   
  
• Separate top menu item Net added in the main menu, and hot keys to control connection without switching to Connection window (Alt-0 - pass moves to the next player, Alt-1 - to the first, etc. to Alt-8 and Alt-9 to request moves).
   
  
• Also some bugs fixed on connection/disconnection, so working with Net Play became more stable and speed of playing over network became more reliable. Now Net Play tested in a local network with two computers connected and works well in such case.
   
  
• Some possible problems with graphic output fixed, especially for Windows9x and low desktop resolutions. Working under 16 colors on real hardware can be still slow (case of 1 bit per pixel, 4 planes). But other modes work fast enough now. If 320x200x256 video mode requested for DirectX full-screen but the hardware can not satisfy this request,the next mode 640x400x256 is tryed.
   
  
• Smooth Scale graphic filter now requires only MMX, and not need SSE2 to be available (so it can work on Pentium II with MMX, at least).
   
  
• Configuration dialog redesigned a bit to fit in lowest resolution display (640x400).
   
  
• An option added 'Dynamic priorities' (in the Configuration), by default it is reset. It has effect in NT/2K/XP and controls treads priority on-fly achieving in some cases better performance (but setting permanent task priority can stop working).
  

» EmuZWin homepage.

Gcube, another promising Gamecube emulator, has been discontinued. However, Monk (the main author) released the 0.4 source code for those who wish to improve upon it. Unfortunately no binaries were released so you have to compile it yourself. Here is a quote from the Gcube Homepage:

Sad but true . Monk no longer has the means to continue developing this great emulator so the project is over. He did however release the Gcube source with the latest changes that were made for anyone that can find it usefull or for even those that wish to continue Gcube, but in either case please give Monk the credit he deservs.

>> Gcube Homepage: http://gcube.exemu.net/