sentences:  Instead, like many software vendors, CPS underestimated how rapidly users were going to shift to Windows from DOS.CPS's other major desktop product was Central Point Anti-Virus (CPAV), whose main competitor was Norton Antivirus.CPAV was a licensed version of "Carmel Software"'s "Turbo Anti-Virus"; CPS, in turn, licensed CPAV to Microsoft to create Microsoft Antivirus for DOS (MSAV) and Windows (MWAV).