Additional versions

6.3.9600.16384 (winblue_rtm.130821-1623)	0.10%
6.1.7600.16385 (win7_rtm.090713-1255)	3.31%
6.1.7600.16385 (win7_rtm.090713-1255)	0.90%
6.0.6000.16386 (vista_rtm.061101-2205)	25.98%
6.0.6000.16386 (vista_rtm.061101-2205)	10.73%
6.0.6000.16386 (vista_rtm.061101-2205)	1.71%
5.2.3790.3959 (srv03_sp2_rtm.070216-1710)	0.90%
5.1.2600.5582 (xpsp_sp3_qfe.080416-1432)	0.10%
5.1.2600.5582 (xpsp_sp3_qfe.080416-1432)	0.30%
5.1.2600.5582 (xpsp_sp3_qfe.080416-1432)	3.51%
5.1.2600.5582 (xpsp_sp3_qfe.080416-1432)	0.10%
5.1.2600.5512 (xpsp.080413-2105)	41.22%
5.1.2600.5512 (xpsp.080413-2105)	0.30%
5.1.2600.5512 (xpsp.080413-2105)	0.30%
5.1.2600.5512 (xpsp.080413-2105)	0.10%
5.1.2600.5512 (xpsp.080413-2105)	0.10%
5.1.2600.5512 (xpsp.080413-2105)	0.10%
5.1.2600.3311 (xpsp.080212-0004)	0.30%
5.1.2600.3300 (xpsp.080125-2028)	0.10%
5.1.2600.3244 (xpsp.071030-1535)	0.10%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)	9.33%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)	0.30%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)	0.10%

This is a Windows system installed file with Windows File Protection (WFP) enabled.

A directory service is a customizable information store that functions as a single point from which users can locate resources and services distributed throughout the network. This customizable information store also gives administrators a single point for managing its objects and their attributes. Although this information store appears as a single point to the users of the network, it is actually most often stored in a distributed form.