This tool uses kernel technology to delete files, including running files or occupied files. It can be used to check which programs are occupying certain files and also to delete stubborn virus or Trojan derivative files during virus analysis. This software product is free software, and users can download, install, copy, and distribute this software product non-commercially. If commercial sales, copying, and distribution are required, authorization and permission from DSWLAB must be obtained. Commercial companies and teams using this software must comply with these terms.