To use the program, you just have to insert the drive you want to read, and the program will recognize it automatically. The same goes for DMG files, which you can open by simply right-clicking on the file and selecting the option TransMac.
It should be noted, however, that while you can use the program to view files and drives, you still can't install Mac only applications on Windows.
Along with this basic option to view files, the program lets you record the content of open files and devices to all manner of disks.
TransMac is a really interesting tool that can get you out of a hole if you ever need to access Mac files on a Windows operated machine.