u can copy it and use it so long as u copy also all registry entries related to the installed software. copy all files. copy all registry entries. then copy all files to the computer u wanted to use. then register the files using the registry entries u copied from the other computer. be sure though that u have the exact locations and directory names as the one u copied the software from.
in other words, para madali, install it using the installer. ow, by the way, this would be soft "piracy"...