Try this:
1. download the windows installer (http://windows-installer-
2. install the same
3. Uninstall all Adobe programs. because the error is because there's Dispute with the components
5. WinCS3Clean download or WinCS4Cleanupscript.
4. CS3Clean run and follow the instructions or CS4InstallerDatabaseUtilit
6. follow the instructions in this link (http://kb2.adobe.com/cps/
Note: With the WinCS3Clean and WinCS4Cleanupscript remove all components of Adobe there is nothing left and after that, restart the computer and issue resolved
Actual forum from where I got it is http://forums.adobe.com/th
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by: johnny_the_knifePosted on 2009-09-28 at 21:46:25ID: 25446070
Do you have any anti-virus / anti-spyware software installed? This might be preventing you from installing CS4 and may need to be disabled / removed.