Hi, you definitely should find something that installs the whole package in your new pc. Other dll, activeX or header files could be needed.
If you can't find any installer you could copy the dll to the right folder and register it in your system with the "regsvr32 nameOFtheDLL" command.
If that dll is all the driver needs to work, this should be enough.
ciao
NicolaC
National Instruments