Articles in this category How do I Install Invicta-TTS for Windows? In order to install Invicta-TTS you need to download a copy. So go ahead and download a copyRun the setup.exe, click next and select the installation location (You can leave this default if you wish!)... How do I upgrade Invicta-TTS on Windows? Shortcuts for Windows Since Invicta-TTS v1.2 shortcuts have been implimented.Alt + G - GoAlt + S - StopAlt + P - PauseAlt + R - ResumeCntrl + A - Select all text within the application.