1) open the license.dat and change host on the first line to your computer name
2) run setup and install Flexlm 9.2 license server. when prompted for a license file point the browser to the license.dat) Ignor any messages about the license and hit next.
3) run setup and install Nastran 2004r3
4) set you license environment:
MSC_LICENSE_FILE = 1700@host (host being your computer name)