need to hack a locked .cab

[GHOST_Dimz]

before i get bashed for game related threads , this is game related ...

i bought the splinter cell 3 : chaos theory limited collectors edition and the installer for the bonus content is bugged , says it cant retrieve the installation folder .

so , i need to somehow unlock the .cab file and extract the contents to a temp directory and install manually , because ubisoft isnt gonna help us out that bought the game anytime soon .

does anyone know of a way to unlock a cab file , ive searched google for unlock cab , unlock .cab , unlocking cab , unlocking .cab , and nothing udeful came up