create small windows program

I have an executable program that I would like to install on windows 32/64 bit computers (XP,Vista,7). The executable program needs to run a command line script that I have created once every 12 hours. I need help creating a windows installer for it, that will run the executible from a command line . I have a executible file that searches the pc and updates various programs on the pc automatically. However, I already have a specific command line that I need run to control this executible the way I would like it to run. I do not want to have to run this command line everytime I want to use the program. I would like some help creating a program that launches the executible every 12 hours with my command line specifications. My idea is to create an installer which runs my executible via command line every 12 hours.