Comtrol Multiport Modems Windows 2000 - Manual (Page 10)

Driver and Adapter Information 10
PCI Adapters
9. Select the Next button to start the installation process.
10. If the procedure displays the Digital Signature Not Found dialog box, select
the Yes button to complete the driver installation.
11. Select the Finish button.The new driver is now installed and the system
starts to configure the COM Ports.
Note: You may have to shut down and restart your system before the changes
take effect.