[hazoume]

I have a Diamond 1200 Plus for windows 98 or 2000. I have a windows Vista. How can I install my scanner?

[ScottGem]

First its not a good idea to piggyback your question on someone else's. This can lead to confusion. You should start a new thread. So I've moved your question to its own thread.

You need to check with the manufacturer to see if they have updated drivers. Otherwise replace the scanner.