LockHunter - It is a free tool to delete files blocked by something you do not know.
Microsoft IIS - Internet Information Services is a web server for Microsoft Windows
IObit Unlocker - Never Worry about “Cannot Delete Files” on Your PC
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
EMCO UnLock IT - Unlock file or folder, locked by the system or by an application
LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.