Instacal driver for PCI-DIO24 - Windows cannot verify the digital signature

[kcriqui]

I'm trying to use a PCI-DIO24 board in a Windows 7 machine. I installed the Instacal 6.73 which included a driver for the card. Windows recognizes the card but is reporting "Windows cannot verify the digital signature for the drivers required for this device". Instacal runs OK but doesn't see the card.

Any idea how I can get this working?

[DAQman]

We updated the driver signature a few years back per Microsoft's recommendations. So, what you need is the CD before we did the update and that is 6.55. Uninstall 6.73, then install 6.55 from the following archive: https://mcc.download.ni.com/Archive/MCCDAQ_CD/Archive_6.55/mccdaq.exe