Freeware : Guitar for Windows

All Mac Win AWS Guitar Tuner by Alexander Wilson            Guitar Tuner   GuitarVision by GuitarVision            play guitar easily   PitchPerfect by NCH Swift Sound            Guitar Tuning Software for Musicians   RiffWorks T4 by Sonoma Wire Works            free guitar recording & online collaboration software   Tuxguitar by TuxGuitar            a tablature editor