SPIN Disk Manager (PC/Windows),
by Damien Guard
Allows examining DSK files, converting, formatting, fixing bad sectors, identifying protection systems etc.
A set of +3 Tools
that can be used to work with +3 disks on a PC
fdc765.dll
by Woody
fdc765.dll is a Windows dynamic link library to allow emulators to read and write DSK files, and to read EDSK files.