ASP.NET备份SQL Server 数据库本地OK,服务器上报错

首先附上代码，代码没问题。本地备份和恢复都没问题，本地环境 Windows Server 2003 + Microsoft Visual Studio 2005 + SQL Server 2000放到服务器上报错。错误如下Retrieving the COM class factory for component with CLSID {10021F00-E260-11CF-AE68-00AA004A34D5}
failed the due to following error:80070005开始以为是没上传 Interop.SQLDMO.dll 这个程序集到Bin目录下，发现其实已存在。
后来想到权限问题，给了 Database_Bak 这个文件夹的ASP.NET和EveryOne的完全控制权限，发现还报这个错。请各位大虾指教。using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Reflection;
using System.IO;
using System.Data.SqlClient;public partial class Admin_Admin_DataBase_Admin_Admin_DBBackup : System.Web.UI.Page
{
    
    
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Request.QueryString["Action"] == null)
            {
                Panel2.Visible = true;
                Panel1.Visible = false;
            }
            else
            {
                Panel2.Visible = false;
                Panel1.Visible=true;
            }
        }
    }    /* 备份数据库 */
    protected void Button1_Click(object sender, EventArgs e)
    {
        BackupDB();//备份数据库
    }    /* 恢复数据库 */
    protected void Button2_Click(object sender, EventArgs e)
    {
        RestoreDB();//恢复数据库
    }    /* 备份数据库*/
    public bool BackupDB()
    {
        string StrPath = CreatePath();//创建路径
        //Response.Write(StrPath);
        //Response.End();
        SQLDMO.Backup ObjBackup = new SQLDMO.BackupClass();
        SQLDMO.SQLServer ObjSQLServer = new SQLDMO.SQLServerClass();
        try
        {
            ObjSQLServer.LoginSecure = false;
            ObjSQLServer.Connect("127.0.0.1", "sa", "123456");
            ObjBackup.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
            ObjBackup.Database = "BlogStar";
            ObjBackup.Files = StrPath;
            ObjBackup.BackupSetName = "BlogStar";
            ObjBackup.BackupSetDescription = "数据库备份";
            ObjBackup.Initialize = true;
            ObjBackup.SQLBackup(ObjSQLServer);
            LabNote.Text = "备份成功";
            return true;
        }
        catch (Exception ErrorMessage)
        {
            LabNote.Text = ErrorMessage.ToString();
            throw ErrorMessage;
            return false;
        }
        finally
        {
            ObjSQLServer.DisConnect();
        }
    }    /* 创建路径 */
    public string CreatePath()
    {
        string StrFielName=TexDBName.Text.ToString();
        //string CurrDate = System.DateTime.Now.ToString();
        //CurrDate = CurrDate.Replace("-", "");
        //CurrDate = CurrDate.Replace(":", "");
        //CurrDate = CurrDate.Replace(" ", "");
        //CurrDate = CurrDate.Substring(0, 12);
        string Path = Server.MapPath("../../Database_Bak\\");
        Path += "BlogStar";
        Path += "_DB_";
        Path += StrFielName;
        Path += ".Bak";
        return Path;
    }    /* 恢复数据库*/
    public string RestoreDB()
    {
        if (KillProcedure() != true)//杀死当前库的所有进程
        {
            Response.Write("qqqq");
            //Response.End();
            return "操作失败";
        }
        else
        {
            string Path = Server.MapPath("../../Database_Bak\\BlogStar_DB_");
            Path += TexDBName2.Text.ToString() + ".Bak";
            SQLDMO.Restore ObjRestore = new SQLDMO.RestoreClass();
            SQLDMO.SQLServer ObjSQLServer = new SQLDMO.SQLServerClass();
            try
            {
                ObjSQLServer.LoginSecure = false;
                ObjSQLServer.Connect("127.0.0.1", "sa", "123456");
                ObjRestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
                ObjRestore.Database = "BlogStar";
                ObjRestore.Files = Path;
                ObjRestore.FileNumber = 1;
                ObjRestore.ReplaceDatabase = true;
                ObjRestore.SQLRestore(ObjSQLServer);
                LabNote2.Text = "恢复成功";
                return "Ok";
            }
            catch (Exception ErrorMessage)
            {
                LabNote2.Text = ErrorMessage.ToString();
                throw ErrorMessage;
                return "恢复数据库失败";
            }
            finally
            {
                ObjSQLServer.DisConnect();
            }
        }
    }    /* 杀死当前库的所有进程 */
    public bool KillProcedure()
    {
        SqlConnection Conn = new SqlConnection("server=.;uid=sa;pwd=123456;database=master");
        SqlCommand Cmd = new SqlCommand("killspid", Conn);
        Cmd.CommandType = CommandType.StoredProcedure;
        Cmd.Parameters.Add("@dbname", "BlogStar");
        try
        {
            Conn.Open();
            Cmd.ExecuteNonQuery();
            return true;
        }
        catch(Exception ex)
        {
            return false;
        }
        finally
        {
            Conn.Close();
            SqlConnection.ClearAllPools();//清空连接池
        }
    }
}