Hi,
The following file shows the supported compilers:
http://zone.ni.com/devzone/conceptd.nsf/webmain/53208B9B098F17CA86256802007B925A?OpenDocument
COFF stands for Common Object File Format. This type of linker error occurs if you're not using the appropriate language interface files. If your not using any of the supported compilers, you need to interface directly with the dll.
The fortran language interface is no longer supported by the newer versions of the GPIN driver. What driver version are you using?, What OS?.
DiegoF.
National Instruments.