unpack a bz2 file on windows

I downloaded an exe from here, then opened a terminal, navigated to the directory where I saved it then typed the file name of the app followed by –decompress then the filename of the bz2 file I wanted to decompress

C:datasoftware>bzip2-102-x86-win32.exe –decompress myfile.bz2

use

C:datasoftware>bzip2-102-x86-win32.exe –help

to get other options