The files on this site are zipped and self-extracting zipped files. Copy the ZIP or EXE file into a temporary directory, extract the files and run the EXE. If the zipped files contain sub-directories don't forget to use the -r switch, eg SAW3BETA.EXE -r This will restore sub-directories (if any).
To use, run the install program (INSTALL.EXE, SETUP.EXE or INSTALLX.EXE etc.) Some beta test files will not be self installing, so we suggest that you unzip them, restoring the original directory/folder structure.