How To use Guiffy from MacOS X Finder

On MacOS X 10.4 or 10.5:

From MacOs X Finder you can select two files or two folders, and then select "Compare with Guiffy" added in the context menu (Ctrl-click) to do a Compare.

Here's how to setup Guiffy in Finder's context menu:
Here's how to do file or folder compares from Finder:

On MacOS X 10.6 or later:

From MacOs X Finder you can select two files or two folders, and then select "GuiffyCompare" added in the context menu (Ctrl-click) to do a Compare.

Here's how to setup Guiffy in Finder's context menu:
Here's how to do file or folder compares from Finder: Documentation by Guiffy Software, Inc. 2012