TBC 2.7 or 2.81 ISO image file

I have a Trimble hasp key for TBC 2.71 upgradeable to 2.81.  It was for a time distributed with new Trimble Equipment on a CD/DVD back in the day.  I have lost the DVD and Trimble doesn't offer those versions for download on their site and I believe they never were available as a downloadable .exe file.  Only came on a Disk.  Does anyone have an image file or DVD of this version that they can share with me?  My dongle is pretty much just an ornament without it. Any help would be greatly appreciated. Thanks