A program that I've found easy to use for such things is "
AddaButton".
There is also an option NOT to install SaveNow with the aplication (hard one that). In previous versions this option to deselect installation of SaveNow seemed to have no effect (although after (SaveNow) removal by SpyBot, the program still worked anyway), but I have installed this version (3.0), and deselected the option to install SaveNow (during main program installation), and what do you know...the "Software" wasn't installed (ran a check with SpyBot).
Hope this is of some use....