Koranis: I've just installed it, walk mod only, and it's not working... I do have the "WALK" option in controls settings that allows me to bind it to a button but Geralt still runs if I press it, he doesn't walk.
The mod only adds (modifies) 3 files
the actions.2da assigns the walk key.
the wgsdefs.lua tells it to use the walk mod
and the walk mod sets "always run" to false. g_cAuroraSettings.m_bAlwaysRun = false
So the only reasons I can think of for it not working, is if Windows isn't allowing you to edit the registry, or you have another mod that changes the wgsdefs.lua and so the walk mod isn't getting loaded.
Or you installed the game with Galaxy, in which case I have no idea.
If you use regedit to look in your registry HKEY_CURRENT_USER\Software\CD Projekt RED\Witcher\Bindings\
Does it show the walk option? Mine shows 80, which is the B key (see bindings pic)
Do you have any other mods that might override the wgsdefs.lua