CNTRL.EXE
It controls the stack for TCP/IP. TCP/IP Stack processing. CNTRL.EXE is a very important component of the stack. CNTRL.EXE provides threads for proper running of the stack. It provides a thread for each of the following: - IP input processing - TCP slow timeout processing - Debug thread for IP - ARP timeout processing - Ifndis debug thread - Watchdog thread for the adapter status - Loopback IP packets processing CNTRL.EXE is normally started from CONFIG.SYS with a RUN=statement. It should be the first program to begin executing when TCP/IP is started. CNTRL.EXE for Version 4 is different from that in the Version 2.0 stack