text: Windows Internet Explorer ( formerly Microsoft Internet Explorer , commonly abbreviated IE or MSIE ) is a series of graphical web browsers developed by Microsoft and included as part of the Microsoft Windows line of operating systems starting in 1995 .
simplified: Windows Internet Explorer ( IE , formerly Microsoft Internet Explorer , MSIE ) , is a series of graphical web browsers developed by Microsoft . It was included as part of the Microsoft Windows operating system , starting in 1995 .