Exe Lockdown - Version 4.1 Executable Lockdown protects PC’s by locking-down your existing "trusted" applications... All new exe's, introduced via any media source. (physical or removable drives, network shares, USB drives, Internet ftp etc.) will not launch unless it is listed within your administrative "Allowed" executables list. It acts as an executable white-list- filter. It filters all executable files; regardless of its file extension. .exe .com .dll .drv.etc.