I have a script that generates an XWD file which needs to be converted to a PNG file. When attempting to convert this with ImageMagick, I get the following output. I've found the delegate download site for ImageMagick, however it doesn't appear to have anything for XWD, much less anything for Windows.
I have also tried using the GIMP command line, however I cannot find any solid reference for converting via GIMP on Windows.