NOTE: This variable is ALWAYS a user variable. Do not attempt to set it manually to be a system variable. Doing so can cause failures and, in extreme cases, the inability to log on.
"Use Network Name for Computer Name" will be unavailable if multiple dependencies exist. Set the dependency, click to select the check box, and add other dependencies as needed.
For additional information, see the following article or articles in the Microsoft Knowledge Base:
Article ID: 198893 - Last Review: Feb 22, 2007 - Revision: 1