http://fms.komkon.org/VGB/
As of December 29 2014, VGB-Windows is free for everyone to use and share.
The new VGB 4.5 for Windows and Linux includes a long list of additions and
fixes accumulated since the last 3.5 release. It emulates GameBoy Light,
GameShark, the tilt sensor, MBC7, TAMA05, and MMM01 memory mappers. There
have been major fixes to GameBoy CPU and LCD controller emulation. The noise
sound channel is much closer to the original in this version. I have also
added support for translation patches (.IPS), custom palettes (.PAL), and a
semi-automatic Cheat Hunter tool to search for new cheat codes. In other
words, have fun! :)
If you like VGB-Windows and want to support its further development, consider
downloading VGB-Android for your phone or tablet. The Android version comes
with many cool extras, such as built-in Cheatopedia with codes for dozens of
popular games, State Exchange for exchanging gameplay states with other
users, and more. Give it a try and report any encountered problems in the
discussion group.
I had to stop development of MSDOS, Maemo, and Symbian ports, as these
platforms are pretty much dead nowadays. Sorry, but still no apple for iOS
users (blame Steve Jobs for your terrible closed platform).
The complete list of features and the list of new features and fixes can be
found in the documentation.