How to using Windiff as External Diff in SourceTree

How to using Windiff as External Diff in SourceTree

1. Open SourceTree
2. Tools - Options
3. Diff - External Diff Tool : Custom
Diff command : C:\PathToWindiff\WinDiff.Exe
Argument :   $LOCAL $REMOTE

*note: put <space> in First letter in Argument
example in command prompt : WinDiff.Exe $LOCAL $REMOTE

How to compare file using Command Prompt and Visual Studio 2015

How to compare file using Command Prompt and Visual Studio 2015
1. open command prompt
2. go to visual studio path : "C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE"
3. example :

.\devenv.exe /diff “C:\b.txt” “C:\a.txt” “SOURCE” “TARGET”