E-MU's Emulator® X is the most powerful and complete software sampler.
PCSX2 is a neat, easy to use Playstation 2 'emulator'.
Spectaculator is a Sinclair ZX Spectrum emulator for Windows.
Sonic Network, Inc.
It's a software sampler designed specifically for Hip Hop producers.
Baby Computer Piano installs a virtual piano on your PC.
mikroC PRO for PIC is a full-featured ANSI C compiler for PIC devices.
Free HTML reports from your music files: mp3,ogg,wma,ape,mpc,flac,mpc,aac,images.
Decodes .mpc .mpp .mp+ Encodes .mpc, for free!
It analyzes beat-to-beat (RR) interval variation in ECG recordings.
The Device Emulator contains the emulator technologies featured in Windows CE.
Q-emuLator is a software emulator of the QL running in Windows and Mac.
Agat Emulator is an Apple ][ and Agat 7/9 emulator for Windows.
Playstation 2 Emulator by Click-2U is the only all in one emulator.
SoftPerfect Connection Emulator (SCE) is a WAN environment emulator.
Fuse (Free Unix Spectrum Emulator) is, unsurprisingly, a ZX Spectrum emulator.
3DS Emulator is a closed source Nintendo 3DS games emulator for PC.