Hola compañero,
Para deshabilitar la mensajeria instantanea debes hacerlo con una plantilla nueva de politicas. Aqui te adjunto ya echa la plantilla que necesitas para poder deshabilitar la mensajeria instantanea. Ya me comentaras si funciono, a mi almenos si.
Salu2!
Eduard
Plantilla ComunnicatorExtra.adm --> copia las lineas y guardalas con el notepad bajo este nombre, luego incluyelas dentro de tu DC exactamente en Windows/inf/
CLASS MACHINE
CATEGORY !!OCSPOLICY_EXTRAS
POLICY !!PolicyDisableIM
EXPLAIN !!ExplainText_DisableIM
KEYNAME "Software\Policies\Microsoft\Communicator"
VALUENAME "DisableIM"
VALUEON NUMERIC 1
VALUEOFF NUMERIC 0
END POLICY
END CATEGORY
CLASS USER
CATEGORY !!OCSPOLICY_EXTRAS
POLICY !!PolicyDisableIM
EXPLAIN !!ExplainText_DisableIM
KEYNAME "Software\Policies\Microsoft\Communicator"
VALUENAME "DisableIM"
VALUEON NUMERIC 1
VALUEOFF NUMERIC 0
END POLICY
END CATEGORY
[strings]
OCSPOLICY_EXTRAS= "Office Communicator Extra Settings"
PolicyDisableIM="Disable Instant Messaging"
ExplainText_DisableIM="Prevents user from sending or receiving instant messages.\n\nEnabling this policy will disable instant messaging, while disabling this policy will return Communicator to it's default behavior.\n\nNote: The July 30 hotfix for communicator must be installed on the workstation, older versions of the client will ignore this setting.\n\nSee KB article 954439 for more details: http://support.microsoft.com/kb/954439"