The license borrow utility deploys automatically by default in all current Autodesk Education products.

Although useful for getting licenses to teachers for their home use and sometimes students for competition use, you may want to disable this feature in your labs.

Please see this link for our previous blog on borrowing a network license:

You can easily script limitations to license borrowing by creating an options file.

1.     Create a new text file named ADSKFLEX.OPT. It is strongly recommended that you only use a plain text editor, such as Notepad, for editing options files.
2. Place this file in the same directory as your Autodesk license file.
3. Perform a ReRead License File operation from the Start/Stop/ReRead tab in LMTOOLS.
4. Examine the debug log file to confirm that your options file changes have been implemented by the license manager.

The easiest way to block a group of users from license borrowing is to define the group:

Defining groups
You can define groups using the Windows login name or the computer name. Note: Computer names and user names are case sensitive.
GROUP [groupname] [user1] [user2] [user3] HOST_GROUP [groupname] [computername1] [computername2] [computername3] The following example defines a group called EngineeringGroup for three users:
GROUP EngineeringGroup smithj jonesb whitef
The following example defines a group called DraftingDept with three computers:
HOST_GROUP DraftingDept computer1 computer2 computer3

Then edit the OPT file to Exclude the group.

Excluding license usage
You can block access to specific licenses for a user, computer, group of users or computers, IP address, IP address range or by LM_PROJECT variable association (computer names and user names are case sensitive). Note: Any users, hosts or IP addresses not explicitly excluded will continue to have access to these licenses.
EXCLUDE [productfeature] [type] [name] The following examples block access to AutoCAD 2006 licenses for a variety of types:
EXCLUDE 48800ACD_2006_0F USER smithj
EXCLUDE 48800ACD_2006_0F HOST computer1
EXCLUDE 48800ACD_2006_0F GROUP EngineeringGroup

The current Autodesk Feature Codes are located here:

http://usa.autodesk.com/adsk/servlet/ps/dl/item?linkID=9240617&id=15224763&siteID=123112

The complete article on how to control options for your license manager is located here:

http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=7459915&linkID=9240617

Author: Steve Rice