WinCVS v2.0.2.4 - external diff is not working

Question

I have installed WinCVS and I am trying to use external diff for looking diff file. I have tried with WinMerge and Beyond Compare but none were getting launched when launched diff. I already have specified external diff full path in Preferences, checked the check box but things are not working.

Answer 1

By some reason WinCvs sometimes does not update registry flag for using external diff. In this case you can do it manually by setting following registry data:

[HKEY_CURRENT_USER\Software\WinCvs\wincvs\CVS settings]
"P_DiffUseExtDiff"=hex:01

Answer 2

http://lists.nongnu.org/archive/html/info-cvs/2001-03/msg00482.html

when starting the diff you get the "diff settings" window. You have to check the checkbox "use the external diff". Then it will work.