# 13.3. What does this mean to application developers?

A standard KDE application will install files into several places in the above structure. The only required items are the application binary, the application kdelnk file, the application icon and the application help files - all others are optional. The most common things that are installed are:

     Type of file                                      Location

     Application binary (required)                     kdedir()/bin/
     Application kdelnk file (required)                kdedir()/share/applnk/
     Application icon (required)                       kdedir()/share/icons/&<;appname&>;.xpm
     Application help files (required)                 kdedir()/share/doc/default/HTML/&<;appname&>;/&<;index&>;.html
     Application toolbar pixmaps                       kdedir()/share/apps/&<;appname&>;/toolbar/
     Application platform independent data             kdedir()/share/apps/&<;appname&>;/
     Application platform specific data                kdedir()/lib/&<;appname&>;/