I would be happy to attempt to assist you with this. However I cannot find any reference to an Iomega external hard drive at 100 MB. So I have to presume that you are talking about the old Iomega 100 MB ZIP drives. Those were external drives that connected via SCSI, USB, and I think parallel. Now, from the Iomega (Lenovo) site:
Iomega's site says the following about that qualified for 32-bit Windows 7: "Zip® Drives: Zip® 100MB, 250MB or 750MB USB, ATAPI, FireWire or SCSI drives should work with native Windows 7 drivers. IomegaWare software does NOT work with Windows 7, so features supplied by IomegaWare will not be available."What that means is the the Windows native drivers should be able to be enough to allow the OS to see the drive. However, all of the specific Iomega features and functions would not work. But that was Windows 7. The rules are a bit different with Windows 8 and Windows 10. For them, the likelihood is extremely low.
Please let me know if I am misunderstanding this. I will send over an additional services offer per your request.
If the device you are using is an Iomega 100 MB zip drive, it is not a fully supported device on Windows 10. Is that the device you are dealing with? If so, then I will change the offer back down to the much lower price. Please let me know...
Also, please understand that there may be multiple ways to try to get this thing to work. And again, the situation is not static. Microsoft comes out with new standard drivers every week. And if there are enough people requesting ZIP support for Windows 10, then it will become a reality. Also, can you tell me what the connection type is with this device? Parallel? SCSI?