#1959
Make SFX is an very easy-to-use (only 2 steps: select source folder -> set the target EXE file name. All done!) freeware utility specially designed to make self-extracting (SFX) archives or stand-alone (un-extracted) executable (EXE) file with ease.

#1768
UPX (short for Ultimate Packer for eXecutables) is a classic, illustrious universal and extendable lightweight packer for various executable files (such as EXE, DLL). With excellent compression ratio and very fast decompression speed. And can be regarded as a commercial quality freeware!