To upgrade to a new version of WinDriver on Windows, follow the steps outlined in Section 4.2.1, which illustrate the process of installing WinDriver for Windows. You can either choose to overwrite the existing installation or install to a separate directory.

After installation, start DriverWizard and enter the new license string, if you have received one. This completes the upgrade of WinDriver.

To upgrade your source code, pass the new license string as a parameter to WDU_Init() [B.4.1] (or to WD_License(), when using the old WD_UsbXXX() APIs).

The procedure for upgrading your installation on other operating systems is the same as the one described above. Please check the respective installation sections for installation details.