My first guess would be to blame my patch for <a href="https://bugs.edge.launchpad.net/bzr/+bug/363837">https://bugs.edge.launchpad.net/bzr/+bug/363837</a> . Even though my patch (which was merged at r4400 I think) should not have the effect reported by Scott, that's where I would start looking. I have appended a note to <a href="https://bugs.edge.launchpad.net/bzr/+bug/390641" target="_blank">https://bugs.edge.launchpad.net/bzr/+bug/390641</a> asking for a bzrlog. Although I am not seeing this problem, I have not looked explicitly for it. I will do so and report back in <a href="https://bugs.edge.launchpad.net/bzr/+bug/390641" target="_blank">https://bugs.edge.launchpad.net/bzr/+bug/390641</a> -M <div class="gmail_quote">On Mon, Jun 22, 2009 at 5:02 PM, Martin Pool <<a href="mailto:mbp@canonical.com">mbp@canonical.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Scott Gibson reports that external diff app support regressed on win32 in 1.16: <a href="https://bugs.edge.launchpad.net/bzr/+bug/390641" target="_blank">https://bugs.edge.launchpad.net/bzr/+bug/390641</a> Does this ring any bells, or did anyone else see it? -- Martin <<a href="http://launchpad.net/%7Embp/" target="_blank">http://launchpad.net/~mbp/</a>> </blockquote></div>