auto indexing of documents while scanning

## we want a simple document capture software -with VB front end ( this should be customisable by us ) & mySQL backend with an OCR integration whereby while scanning - 4 or 5 rectangle zones are marked at standard locations of an A4document/form from where the index data is automatically captured & then the document is saved with corresponding linkage to the data . The search should be possible on any of the 5 fields and on clicking it - the document should open . The indexing should be done automatically on the fly while the scanning is going on . There should be no limitation on the number of documents to be captured & indexed .