public SamUser OpenUser(SecurityIdentifier sid, SamUserAccessMask desiredAccess)
{
int rid = sid.GetRid();
return this.OpenUser(rid, desiredAccess);
}
public void SecurityIdentifierExtensions_GetRid_UserSID()
{
SecurityIdentifier sid = new SecurityIdentifier("S-1-5-21-3180365339-800773672-3767752645-500");
int rid = sid.GetRid();
Assert.AreEqual(500, rid);
}