i deleted cognos express with out uninstalling bcoz wen i uninstalling its stopping in middle and stuck thats reason i deleted now one .xml file left in that folder unable to delete when i again trying to reinstall express its saying already available in system please help me...
OK - since you've got this far, you're not going to be able to uninstall Express using normal methods. Here are some things to check:
Firstly, check the services configured on your machine. If you have any of the following services still registered, you will need to remove them:
IBM Cognos Express
IBM Cognos Express Advisor
IBM Cognos Express Xcelerator Admin Service
IBM Cognos Express Xcelerator Excel Service
IBM Cognos Express Xcelerator Server - CXMD
Informix IDS - cm_ids_svr_custom
Informix IDS Message Service
Next, stop any running web servers on your machine (such as IIS), and try to remove the remaining parts of the Express install from disk.
Finally, edit the registry and remove entries relating to Cognos Express or TM1. Remember to make a backup of your registry beforehand!!
Good luck!
MF.