__Windows ImageMagick__ If you are using Windows, you will need to download and install ImageMagick. ImageMagick is a free third party tool that handles the conversion of many different file formats. Its used to convert the images to small thumbnails. [http://www.imagemagick.org/script/binary-releases.php#windows] I generally get the top link via HTTP. [attachments|imagemagick_link.png] The Command Line should start with just "convert.exe" and not "./convert". The Environment Variables field should be blanked out for Windows too. __Windows GhostScript__ If you want to make thumbnails of PDF or TIFF images, then you will also need GhostScript installed. Click on the latest release. [http://www.ghostscript.com/download/gsdnld.html] Then click on either the 32bit or 64bit version. [attachments|ghostscript.png] __Other ImageMagick Installations__ If ImageMagick is installed on the OS, and the command "convert" functions from a terminal, do the following to configure CrushFTP to use it. Do a "which convert" to see the folder where ImageMagick is installed. In my case, it was /opt/local/bin/. Set the Working Directory to be this path: /opt/local/bin/ Set the start of the Command Line to be "./convert ".... Next do a "echo $PATH" to see what the PATH is in your terminal. (Mine was:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin:/usr/X11/bin) Copy this, and paste this for the environment variables as follows: PATH=(pasted PATH info you copied) Enable the debug checkbox, and let it run to see the results. (Restart CrushFTP to make it run immediately at startup.)