This command is available only for Command Scripts. When n = 1 it causes any user interaction in the form of Stop, Inform or ask yes or no messages to be suppressed. When these messages would appear they are written to the error log and the default response assumed. If n = 0 interaction is turned back on. While NOINTERACTION is in effect, as each command is executed the command is also recorded in the error log (vensim.err).