Aplication to digitalize pictures

i've found this activex: <[login to view URL]> and I need it with few modifications.. The source is in C#, VB, .NET. What I need: We have an office and our clients photocopy their id's and send it to us. But every img comes with a different resolutions.. sizes.. etc.. some of them 15mb.. others 10kb.. and so on. I need to make pattern.. so they all send their documents with the rights settings.. For that I need them to use the same app to scan their docs.. Thats the api that I need.. Its a very simple application, it will have: ppré scan -> crop -> scan -> name of the file to save All other settings can be hard coded.. and it must work on several machines (win XP, win 98 and vista if possible).