NT and USB Zip 100

On a PowerEge 2450 server running Windows NT with Service Pack 6 installed and verifying that USB was enabled the latest Iomega drivers being installed shutting down the server and connecting the ZIP drive. Now Windows NT is experiencing a Kernel dump in every configuration mode and rebooting the Hardware!! Would anyone have any ideas on how to get back into the OS and initiate repairs, ie remove the Iomega drivers that crashed the server. Thank you in advance for any help you can offer.