Hi I work on 3 D S max 9 , i recently installed Max Havok plugin of old version & is not supported by max 9 , i need help removing that plugin so as to get rid of getting error messages wat i m geting

Wrong forum. Moving you to... Visual Arts.

i asked for help thats why i posted it here in the help wanted secion , and i did not initited any visual art dicussion in the post , albeit u put my post to visual art catagory.

rename you 3ds max folder, make a dummy (empty) folder with the same name. reinstall the havok plugin, now selecting the empty folder.
Now you should have an empty folder with all the plugin files that it installs and their location.
Use this as a guide as to which files you need to manually remove in your real 3ds max folder. Then delete the dummy folder and rename your 3ds max folder back to normal and it should be uninstalled.
Though this is the long-winded process if it didn't have an installer. If it had an installer just remove it using that.