运行ASP程序时如何解决缺少对象: 'xcryptDll'的问题

没有定义这个对象xcryptDll

我不知道xcryptDll是什么类型的对象，请给第63行附近的代码，

完整sub end sun程序如下
<%
sub admin_login()
    response.cookies(webCookies)("admin_valcode")=session_for&"_"&rnd_value
%>
<script language="javascript">
<!--
    if (self.location!=top.location) { top.location=self.location }
//-->
</script>
<div id="login_container"  >
    <div id="Login_Header" ></div>
    <div id="Login_Content" >
        <div id="Login" >
            <div class="Pimg"><img src="Images/center.jpg" width="289" height="539" /></div>
            <div class="form_alogin">
                <form name="admin_frm" action="?ok" method="post" class="login_form">
                    <input type="hidden" name="admin_log" value="ok" />
                    <h2 class="f14 fbold">登录网站后台管理系统</h2>
                    <table border="0" cellspacing="0" cellpadding="0" class="login_inputlist">
                    <tr>
                    <td class="label1">管 理 员：</td>
                    <td><input type="text" name="username" value="<%= login_username %>" size="15" maxlength="20" class="input_login" onmouseover="this.focus()" /></td>
                    </tr>
                    <tr>
                    <td class="label1">管理密码：</td>
                    <td><input type="password" name="password" size="15" maxlength="20" class="input_login" onmouseover="this.focus()" /></td>
                    </tr>
                    <tr>
                    <td class="label1">版本选择：</td>
                    <td><!-- #include file="../include/inc_seledition.asp" --></td>
                    </tr>         
                    <tr>
                    <tr>
                    <td colspan="2"><input name="login" type="submit" value="登 陆" class="inp_L2" style="cursor: hand;" onclick="javascript:return admin_login_chk();" />&nbsp;&nbsp;&nbsp;&nbsp;<input name="reset" class="inp_L1" type="reset" value="重 填" /></td>
                    </tr>      
                    </table>
                </form>
            </div>
        </div>
    </div>
    <div id="Login_Footer">
        <a href="<%= webUrl %>" class="Fonta1aabb"><%= webCopyRight %></a>
    </div>
</div>
<%
end sub

是的，谢谢请指教。我是年近70的老人了，无事，还想学一些。