WINDOWS:
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1.  First Create a directory on the c: drive (even if you install maya on different drive) called
    FLEXLM
2.  Copy the aw.dat and awkeygen.exe file to this directory.
3.  Install Maya
4.  Goto start-->all programs-->AliasWavefront-->common utilities-->FlexLM license utilities
5.  Under system settings copy Ethernet address
6.  Open the file (from the directory FLEXLM) aw.dat with Wordpad and replace the words "your host"
    with the copied Ethernet address. Save and close wordpad
7.  Using the run utility and type: awkeygen.exe aw.dat
8.  Goto start-->all programs-->AliasWavefront-->common utilities-->Install license
10. Under the path of the file aw.dat
11. Click install
12. Restart computer


LINUX:
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Start at Step 3.

Your license (default) dir is /var/flexlm
so copy the generated aw.dat (you did that on a windows machine in dos)
into that directory.