PEACHTREE QUANTUM PREFERRED with E-filing Sage Peachtree Quantum 2011 Preferred is Quantum Essential matched with Peachtree "Select" Tax Tables. The Ultimate High-Performance Sage Peachtree Accounting Solution. Sage Peachtree Quantum 2011 is a top-of-the-line accounting solution that supports 5, 10, 15, 20, 30 or 40 licensed, named users, and offers advanced security and order tracking settings. Sage Peachtree Quantum delivers all the features of Sage Peachtree Premium Accounting, and provides support, updates, and upgrades for 12 months from purchase. Visit this site for more information: http://www.peachtree.com/quantum/ptQuantum/QTM_FeaturesandBenefits.pdf