C:\inetpub\Virtual Directories\WordPress\wp-content\ewww>optipng -v
OptiPNG version 0.7.6
Copyright (C) 2001-2016 Cosmin Truta and the Contributing Authors.
This program is open-source software. See LICENSE for more details.
Portions of this software are based in part on the work of:
Jean-loup Gailly and Mark Adler (zlib)
Glenn Randers-Pehrson and the PNG Development Group (libpng)
Miyasaka Masaru (BMP support)
David Koblas (GIF support)
Using libpng version 1.6.21 and zlib version 1.2.8-optipng
