Installation of an application program which is not compatible with a version of an OS is prevented. On a transmission side, information bits of one code word are assumed to represent the entirety of both an application program to be distributed to a receiving side and system software, including an OS...http://www.google.de/patents/US6363402?utm_source=gb-gplus-sharePatent US6363402 - System and method insuring application and operating system operational compatibility
