In Visual Studio 2017 & 2019, it can be found here :
-Replace {YEAR} by the appropriate year ("2017", "2019").
-Replace {EDITION} by the appropriate edition name ("Enterprise", "Professional", or "Community")
C:\Program Files (x86)\Microsoft Visual Studio\{YEAR}\{EDITION}\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer\tf.exe