A federal judge on Oct. 15 granted a request by Ticketmaster LLC to block a software company from making or distributing computer programs used to flood the ticket retailer’s Web site with orders, beating consumers who log onto the Web site manually to buy tickets.

U.S. District Court Judge Audrey B. Collins issued a preliminary injunction against RMG Technologies Inc., barring the Pittsburgh, Penn.-based firm from buying or facilitating the purchase of tickets from Ticketmaster’s Web site for the purpose of reselling them.