Copy the CAB file onto the Pocket PC; for example, in the TEMP folder.
On the Pocket PC, use File Explorer to navigate to the folder containing the copied CAB file.
Tap the CAB file to run it and make the registry change. A warning message is displayed:
"The program you have installed may not display properly because it was designed for a previous version of Windows Mobile software."
Tap OK to proceed.
To remove the CAB file after it has been installed on the Pocket PC, use the File Explorer to navigate to the folder containing the copied CAB file. Tap and hold the file to bring up the context menu and select Delete.