1. A computer program product for synchronizing data between a first computer and a second computer, the computer program product comprising: one or more computer-readable storage devices and program instructions stored on at least one of the one or more computer-readable storage devices, the program instructions comprising: program instructions to change an original first data in a first computer into a revised first data in the first computer by inserting a data change into the original first data; program instructions to identify the data change in the revised first data; and program instructions to transmit the data change to a second computer in a message, wherein the message instructs the second computer to convert an original second data stored in the second computer into a revised second data by inserting the data change into the original second data, wherein the original second data and the revised second data are utilized by a resident application software on the second computer, and wherein the message is executable without use of the resident application software on the second computer.