2025-07-07 15:33 AEST by Arthur Barrett - The XML XDIFF component calls run_diff() but the XDIFF component calls diff.exe.

We include rvsdiff.exe (as an optional server feature), but not diff.exe

Also see 
bug 7333: update gnu diff included in CVSNT?
Bug 7035: enh: included 'diff' is pre-diffutils 2.7, should we upgrade?

2025-07-07 15:39 AEST by Arthur Barrett - changed to windows target.

note: here is an interesting alternative:
https://github.com/Wilfred/difftastic

"difftastic is a structural diff tool that compares files based on their syntax."

manual:
https://difftastic.wilfred.me.uk/installation.html