No, starting with NX 5 a new license file format is used.
For NX 4 and below you need to use the NX 4 license server.
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To be specific:
NX5 & newer use the vendor daemon "ugslmd" (note the "s")
NX4 & older (back to UGII v14 or so) use the vendor dameon "uglmd" (without the "s")
You can run *one* of each daemon on the same computer (i.e. one uglmd and one ugslmd)
(in case you're interested, UGIIv13 & earlier used ACS, not flexlm/flexnet/whatever they're calling it now)
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