Short description of CheckOsVer 1.03.1: CheckOsVer is small, free program which will report your Operating System Version and also the version of the Windows Common Controls installed on your Windows PC. CheckOsVer is completely free. You may use it and distribute it freely to anyone you like. If you want to include CheckOsVer with your product, or package or bundle it in any way, we would appreciate you sending us an email.