emacsbinw64 and emacs-bin projects on sourceforge.net provide development and stable builds of emacs for Windows (both 32-bit and 64-bit versions).
Emacs Snapshot builds for 64-bit Windows - Download | Homepage
Built by Chris Zheng
From the homepage,
- 100% unmodified source code from git master and release version.
- Native 64-Bit binary for MS-Windows.
- Compiled with optimization.
- With JPEG, GIF, PNG, TIFF, SVG, XML2, and GnuTLS support.
Emacs Snapshot builds for 32-bit Windows - Download
Built by Dani Moncayo
Each package contains exactly what "make install" produces. Therefore, even though they have support for optional libraries, the binaries of those libraries are not bundled.
As lawlist mentions in the comments, the 32-bit version does not come pre-packaged with PNG and other image support.
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