Cisco AAA/Identity/Nac :: Add OPNET Radius Attributes In ACS 4.2


I need to add OPNET Radius attributes in ACS 4.2. How should I add a new VSA in ACS?  The google search is pointing me to CSUtil.exe, and I cannot find this utility in the ACS install files.  These are the values that I need added for OPNET. When configuring the RADIUS server to support the ACE Live Appliance, use the following Vendor Code and Vendor Specific Attribute (VSA): Vendor Code: 7119 VSA: 33.