Install Canon ZoomBrowser with out CD

Download latest ZoomBrowser EX 6.5.1
update registry by creating following folders

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOS Utility]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\DPP]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\ZoomBrowser EX\Install]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\PhotoStitch
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOS Capture]
[HKEY_LOCAL_MACHINE\SOFTWARE\Canon\EOSViewerUtility]

Install latest ZoomBrowser EX

Reference:
http://www.northlight-images.co.uk/article_pages/install_canon_software.html