Ive downloaded the software... it goes to my Downloads directory... I unzip it... and double click VarAC.exe , the program opens but doesnt install. Is that correct. I thought it would install. Maybe Ive downloaded a stand alone version? Also, It the CAT, PTT doesnt do anything with my FT-891. I use it for winlink and VaraChat but it just wont do right. Is there a different version that installs on Windows 10 and am I doing it wrong? Ross KG4NWE