Microsoft has set the lawyers on 26 computer dealers for allegedly selling pirate software.
The software giant has filed suit against 26 US resellers it accuses of pirating software or pre-loading hard disks with dodgy copies of Microsoft products. Lawsuits were filed in Colorado, Georgia, Illinois, New Jersey, New York, Ohio and South Carolina.
Microsoft says its actions to "combat piracy are aimed at leveling the playing field for ... honest partners".
Microsoft sends out secret shoppers to buy hardware and software. The products are then tested to check they are genuine.
Redmond also got information on some of the dealers through its US snitch line - 1-800 RU-LEGIT.
Read the press release here. ®