Hello,
ColdFire build tools are integrated in CodeWarrior for MCU 10.x (which is Eclipse based) - this runs on Win7
S12 build tools are not integrated in Eclipse based CW, but the Classic CW (5.1 in S12 case) works under Win7 (but need to be installed under an accessible path (other than Program Files (x86)), or to be run as Administrator)
Regards