The Autodesk Network Licensing Guide for AutoCAD 2010 or AutoCAD Architecture 2010 refers to “How to Install and Use the Network License Activation Utility”.But where is it? Where can it be found? You should notice that this utility has been discontinued but the guide has not been updated accordingly.
You can activate your license by going to http://www.autodesk.com/register and following the on-screen instructions or by calling Autodesk Activations at 1-800-551-1490 and choosing #1 for English and #2 for Network License.
The location for the Autodesk Network Licensing Guide is found in the Help folder where AutoCAD or the vertical is installed.
C:\Program Files\AutoCAD 2010\Help\adsk_nlg.chm
Autodesk Stand-Alone Licensing Guide is named adsk_slg.chm and found in the same Help folder.
PS. A tip to Autodesk is to make these guides available at http://www.autodesk.com/autocad-help