In the old version, the storage path of the cache file was c: \ documents and settings \ all users \ application data \ mcache, and this file was hidden. If it is version 20 10, the cache file is located in a hidden folder named temp in the KwDownload folder. To view these two files, you need to set (Tools-Folder Options-View-Check Show All Folders and Files). The video format is generally WMV, and the HD format is mkv.