HOWTO: when you lost DPP CD

I cannot find my canon DPP install CD, and Canon website provides DPP updater only.
DPP updater runs only on PC with DPP installed. If you have the following contents at registry table, then it thinks you have DPP installed.

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\DPP]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\ZoomBrowser EX\]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOS Capture]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOSViewerUtility]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\PhotoStitch]


Some lines are for other updater.

For ZoomBrowser 6.3+, please change "ZoomBrowser EX" to "ZoomBrowser EX\Install".