The TackTracker Player is available as a free download for your PC or Mac. You get the race player capability for free, including the ability to play online races and load your own track files. TackTracker Race Editor features, including support for the QStarz devices and ability to define your own races requires a Race Editor license. You can get a free 14 day trial license here.

If you wish to connect a QStarz BT-Q1000XT or CR-Q1100P GPS, you will also need to download and install the USB driver.
Download USB Driver (includes Windows 7 support)
The driver is provided in a .zip archive which you will need to unpack into a temporary folder. Then run InstallDriver.exe
The driver may also be obtained by installing the software supplied on the mini-CD with your GPS, or from the QStarz download page.

If you wish to connect a QStarz BT-Q1000XT or CR-Q1100P GPS via USB cable, you will also need to install the VCP driver, which is included in the TackTrackerInstall disk image. Double click on the VCP Driver icon to install.