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If you look in your ClearDock Installation Log, you'll find what was installed... here's mine:

Code:
ClearDock 1.4 Installation Log
2006-06-26 00:50:17 +0200

Installed Application Enhancer system to /Library/Frameworks/ApplicationEnhancer.framework
Installed /Users/lasse/Library/Application Enhancers/ClearDock.ape
Installed /Users/lasse/Library/InputManagers/Smart Crash Reports

You should also have two files called com.unsanity.cleardock.plist and com.unsanity.apelauncher.plist in your ~/Library/Preferences/ folder.
 
whenever i try to delete cleardock.ape and smart crash reports it says they are already being in use.
 
Is the Application Enhancer preference pane gone from System Preferences?

Anyhow, try logging in as another (admin) user. Make an account if you have to. And then delete the above mentioned files from there...
 
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