Compiler, filehippo programs are malware free, I've been using the site for years.

It's also a good place to get older versions of programs (don't install any older versions of internet-accessing programs though).

One should be careful with any program installation, always setting a System Restore Point first (and do regular partition backups). Things sometimes go wrong due to installer bugs and program conflicts. I remember a story on Windows Secrets about how someone installed 20 of the most popular programs one after another to see what would happen and it trashed their system!