Binaries
Please note that starting from version 1.9.2 releases will be UNICODE only. The installer will come with binaries for all supported processor architectures (i386, AMD64, IA64).
Currently diff-ext installer includes binaries for 32bit and 64bit Windows OS.
Please let me know if you need non-UNICODE or single architecture version of the installer.
Sources
Windows: diff-ext-1.9.2.zip
Unix (Nautilus extension): gdiff-ext-0.3.2.tar.bz2, gdiff-ext-0.3.2.tar.gz
Unix (Konqueror extension): kdiffext-0.4.0.tar.bz2, kdiffext-0.4.0.tar.gz
Unix (Thunar extension): xdiff-ext-0.2.0.tar.bz2, xdiff-ext-0.2.0.tar.gz
Older versions
Older binaries and sources of diff-ext are available from project page at sourceforge