Tandberg Data ASA
A diagnostic tool for Tandberg Data LTO and DAT tape drives.
Virtual Serial Port Driver allows creating virtual serial port pairs on a PC.
You can create virtual CDROM drives, create and mount ISO images.
J. A. Associates
Virtual Drive Creator is system directory modification tool.
FarStone Technology, Inc.
It is virtual CD/DVD emulation software with many additional features.
WinCDEmu is an open-source CD/DVD/BD drive emulator.
Gens32 is an emulator for: SEGA Genesis, Mega-Drive.
Floppy Emulator helps you to replace floppy disk drive with a USB Stick!
It is intended for interfacing between the emulator floppy disk drive and a PC.
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.