Upon installing SEP [Symantec End Point Protection] , some other AV [Anti Virus] or another sort of applicaiton or utiliy, the Kace taskengine may report a return value of 1, which indicates an error or failure of some sort. However, this does not indicate a valid error or failure, since the application installed successfully, i.e. in other words, upon further research [for example, by checking the install.log], it seems that code 1 signifies that SEP installed without any problems, but requires a reboot or virus definition update.