I am new to sybase. I am trying to uninstall PC Client 15 and Install PC Client 12.5 on a Windows 2000 box (32 bit). For some reason even after I uninstall the software and manually deleted the folder and cleanedup the registry. It is not allowing me install PC Client 12.5. It keeps giving me the error that newer version of software installed and exit the install process for PC Client 12.5. If anybody know a workaround please do let me know.