Hi Hubert,
Thank you for your response.
Unfortunately we are dealing with old versions.
CA Policy Server Management Console
Version=12.0 BuildNum=635 Update=01.05
Our CA build documentation from 2011 refers to smobjimport for backup and restore of the policy store. But the specific of changing one setting of the LDAP server obviously is not covered.
I searched for XPSExplorer and found version 12.0.0105.635. On running this, an error appeared before the main menu was displayed. "An error occurred when calling "SQLExecDirect" for"Read Parameters" query CA-XPS:ODBC0002(ERROR) : 42S02:208 [NS][ODBC SQL Server Driver][SQL Server]Invalid object name 'xpsParameterSetting'
Followed by similar worded errors, then the last one ending in Save Policy Store ID failed.