How can I make a user inactive at sharepoint server 2007?

hi it depends on what authentication you use. If you use NTLM authentication and users are stored in AD - then you need to disable AD account. If you use FBA and users are stored in database - then you should set appropriate field in your database (if you use OTB aspnet_db - probably you should set IsLockedOut = 1 in aspnet_Membership table). Membership providers use these properties when determine is user inactive or notBlog - http://sadomovalex.blogspot.com Codeplex - http://camlex.codeplex.com

Hi ,I disabled them from active directory but they still show at people and groups screen

when you disable user account in AD - it doesn't disappear in People in Groups. However user will not be able to login under disabled acocunt on your siteBlog - http://sadomovalex.blogspot.com Codeplex - http://camlex.codeplex.com