All our products successfully work with Windows 8.
If you are using windows8, a 64bit DAW and Warmverb/AkustiX/Filterbank3, then make sure that you install the correct version of our plugins. Within the zip files there is an installer called Tone2_*_PC_64Bit_win8.exe . You must install this one and not Tone2_*_PC_64Bit.exe .