When you install Adobe CS4 or CS5 Suite or product, the More Info dialog box or installer log indicates one of the following error codes:
- Error 1401: Unable to create key \Software\Classes\.tif\OpenWithList\Illustrator.exe. Verify that you have sufficient access to that key, or contact your support personnel.
- Error 1402: Could not open key \Classes\.pdf\PersistentHandler. Verify that you have sufficient access to that key, or contact your support personnel.
- Error 1404.Could not delete key \Software\Classes\CLSID\{DF9A1DA0-23C0-101B-B02E-FDFDFDFDFDFD}. Verify that you have sufficient access to that key, or contact your support personnel.
- Error 1406: Could not write value Folders to key \Software\Classes\CLSID\{B801CA65-A1FC-11D0-85AD-444553540000}\PersistentHandler. Verify that you have sufficient access to that key, or contact your support personnel.
CS4 products sometimes show the lines of text in the screen that appears when you click Show More Info at the Installer Status screen. CS5 products indicate an exit code 6 or 7 in the Installation Status screen, or after you click the Troubleshooting link. To locate the details of which registry keys are affected, open the installation log file. Search for "return value 3," then look just above that text for the error 1401, 1402, and so on.
For example, here is the result of searching for "return value 3" from an installer log file resulting from a Master Collection CS5 installation attempt:
Error 1402.Could not open key: UNKNOWN\Components\DA42BC89BF25F5BD0AF18C3B9B1A1EE8\68AB67CA7DA73301B7449A0100000010. Verify that you have sufficient access to that key, or contact your support personnel.
Action ended 14:54:46: InstallFinalize. Return value 3.
The MSI Error 1402 appears just above the Return value 3 entry.

