I have a problem to create a DLL with a file that I download from your database with extension .msi the error appear like this one "checkerr IVI_INSTRUMENT_FIRMWARE_REVISION" when .c file is trying to compile. when I download an instrument driver with extension .zip it's to easy to create a DLL just with the files .c,.h,.fp but if I try to do the same with the file that I need to install always I get an error in IVI.