The Self-Extractor require no installation. You can simply download (in .ZIP format) from C|Net, FreeWareFiles, MajorGeeks or any other Windows Software sites that host this program. When you finish download, just extract the content to any folder and start using it.
PRECAUTION:
Downloading .EXE from unknown source might poses security risk to your computer. Please ensure to scan the files with antivirus / antimalware program before attempt to open.