If you wish to scan documents, you can use the alternative Windows Fax and Scan tool, available in Vista and 7 by typing scan in the Start > Search box.

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This can be used to create a fax from scratch or by scanning a document, and also allows you to forward your scanned document as an email. Fax accounts can be configured to enable use as a fax machine, although of course no OCR (optical character recognition) features are available.
Meanwhile, OCR is available via Microsoft OneNote 2010. To copy text from a scanned document, in OneNote go to Insert > Picture and insert your scanned document.
Right-click the picture and choose Copy Text from Picture in the context menu; to use the text, simply paste it into a new location.