It is sometimes necessary to manually edit the ProClarity Analytics Server (PAS) properties manually.  This may be due to configuration needs, IIS or server corruption, or a known issue where PAS prevents the editing of properties in the Admin Tool server properties dialog.  You can edit PAS properties in three ways – the Admin Tool server properties dialog box, the IIS 6 metabase, and the IIS 7 applicationHost.config file.  Restarting IIS is highly recommended after making changes. 

Please see the attached white paper for details.