Use these instruction to uninstall Sybase IQ client components.
Uninstalling Linux or UNIX client components
From a command prompt, change to $SYBASE/uninstall/IQ, and type IQuninstall. Follow the instructions on the screen.
Uninstalling Windows client components
Click Start, point to Settings, choose Control Panel | Add or Remove Programs.
Choose Sybase IQ-15_1 from the program list.
Click Change/Remove.
Follow the instructions on the screen.