▁the ▁partner ▁extr an et ▁site ▁using ▁AD ▁F S . ▁ ▁The ▁user ▁is ▁now ▁logged ▁into ▁the ▁partner ▁website ▁and ▁can ▁interact ▁with ▁the ▁website ▁as ▁if ▁logged ▁in . ▁ ▁AD ▁F S ▁integr ates ▁with ▁Active ▁Directory ▁Domain ▁Services , ▁using ▁it ▁as ▁an ▁identity ▁provider . ▁AD ▁F S ▁can ▁interact ▁with ▁other ▁W S - * ▁and ▁SA ML ▁ 2 . 0 - comp li ant ▁feder ation ▁services ▁as ▁feder ation ▁partners . ▁ ▁Vers ions ▁▁▁ ▁A DF S ▁ 1 . 0 ▁- ▁Windows ▁Server ▁ 2 0 0 3 ▁R 2 ▁( add itional ▁download ) ▁ ▁A DF S ▁ 1 . 1 ▁- ▁Windows ▁Server ▁ 2 0 0 8 ▁and ▁Windows ▁Server ▁ 2 0 0 8 ▁R 2 ▁ ▁A DF S ▁ 2 . 0 ▁- ▁Windows ▁Server ▁ 2 0 0 8 ▁and ▁Windows ▁Server ▁ 2 0 0 8 ▁R 2 ▁( download ▁from ▁Microsoft . com ) ▁ ▁A DF S ▁ 2 . 1 ▁- ▁Windows ▁Server ▁ 2 0 1 2 ▁ ▁A DF S ▁ 3 . 0 ▁- ▁Windows ▁Server ▁ 2 0 1 2 ▁R 2 ▁ ▁Windows ▁Server ▁ 2 0 1 6 ▁AD ▁F S ▁- ▁Windows ▁Server ▁ 2 0 1 6 ▁ ▁Windows ▁Server ▁ 2 0 1 9 ▁AD ▁F S ▁- ▁Windows ▁Server ▁ 2 0 1 9 ▁ ▁See ▁also ▁ ▁Cla ims - based ▁identity ▁ ▁Digital ▁identity ▁ ▁Information ▁Card