How to install and use a diff tool
I have tried numerous diff tools but the one Ilike the most is tkDiff because of it's colorful approach to comparing files. The only downside is that you need the extra step of installing the Tickle engine first. If someone knows of a free diff engine as nice as Tickle's diff them post a comment and let me know.
1) Download the ActiveState Tcl Client and install.
2) Download the tkDiff program
3) Simply create a shortcut to the script. As long as you choose to associate .tcl files with the Tcl binary the program will open automatically.
4) Select the files you want to compare and your good to go.