SDelete - Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant secure delete program.
Dr. Link Check - Broken link checker with malware and parked domain detection
Kerish Doctor - Kerish Doctor 2015 is an all-in-one solution for automatic maintenance of Windows-based computers.
BrokenLinkCheck - Free Broken Link Checker / Online Dead Link Checking Tool - find bad hyperlinks
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
LinkChecker - LinkChecker is a free, GPL licensed website validator.