Vince's recent quest to clear the keyboard buffer made me think of the KEYSTACK command's special handling of the exclamation mark ! to clear the stack. But on looking at the HELP, that special use of ! has disappeared from HELP with the switch from 4NT (v. 8) to TCC (v. 9), along with the /A (append) option. Have these feature been dropped? I have some old batch files I still use invoke the feature.