WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
TreeSize - TreeSize tells you where precious disk space has gone to.
LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.