Savers' business model involves partnership with local non-profits and purchasing and reselling donated items. Some ISPs do allow sharing or reselling of bandwidth. Examples included reselling counterfeit goods and drugs. This was to prevent owners from reselling the vehicle for a profit. There are vendors that violate rules by reselling products at Producer Only markets. Jimmy manages a cell phone store but makes more reselling prepaid phones. By 1998, the company's main business was reselling software from Microsoft and other vendors. Microsoft markets Dynamics applications through a network of reselling partners who provide specialized services. Repairing and reselling clothing has less negative impact than creating new clothing does. This allows the hotel increased revenue by reselling the same room several times a day. This could present an arbitrage opportunity in the absence of any restriction on reselling. Not all Dexron fluids are licensed for reselling under another brand name. Portfolio is also barred from reselling debts to third parties in the future. Ticketmaster launched fan to fan secondary ticket reselling site TicketExchange in November 2005. Serenity Systems has been reselling OS/2 since 2001, calling it eComStation.