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NI System Configuration also has a C API, which might be your best bet for getting it to work with LabVIEW 7.1. I think import/export would require setting up call library function nodes for NISysCfgInitializeSession(), NISysCfgExportConfiguration(), NISysCfgImportConfiguration(), and NISysCfgCloseHandle() from nisyscfg.dll. Here's the documentation: NI System Configuration Function Reference for LabWindows/CVI. The nisyscfg.h header file gets installed when you select LabWindows/CVI in the NI System Configuration installer (not the DAQmx installer).