RemoveUserFromRole Method
The RemoveUserFromRole method of the Users and Groups service removes the specified user from the specified site group.
Parameters
roleName A string that contains the name of the site group.
userLoginName A string that contains the user name (DOMAIN\User_Alias) of the user.
Example
The following code example removes the specified user from a site group.
Requirements
Platforms: Microsoft Windows Server 2003
Web Reference: http://Server_Name/[sites/][Site_Name/]_vti_bin/UserGroup.asmx