Alternate EXE Packer is freeware that can compress and decompress executable files and DLL-files.

There are 12 different levels for file-compression in Alternate EXE Packer. This program is also able to create backups of the files that shall be compressed.

If a file is compressed, the physical file size is reduced. A compressed file decompresses itself while being executed and can be used without this program.

The author of Alternate EXE Packer does warn that this is to be used at your own risk and to make backups.