原来配置好了运行环境，
昨天安装了后
我向数据库插入一条记录，竟然说找不到mdac请安装组件
我于是重新安装了mdac,但是不起作用！

请教各位大侠！


就这么简单的几句话


sub InsertAdUser(sender as object,e as eventargs)
    dim StrSql as string
       StrSql = "Insert Into User(UserName,UserPwd,UserRate) Values('" & NewAdmin.Text &"','" & NewAdminPa.Text & "'," & Cint(AdClass.SelectedItem.Value) & ")"
       dim Cmd as new OleDbCommand(StrSql,conn)
       conn.open()
       Cmd.executeNonQuery()
       conn.close()
       Message.Text = "已经成功添加！"
end sub


错误显示：
[COMException (0x8007007f): 找不到指定的程序。]
   System.(Guid rclsid, IntPtr pUnkOuter, Int32 dwClsContext, Guid riid) +0
   System.Data.OleDb.OleDbConnection.CreateInstanceDataLinks() +172
   System.Data.OleDb.OleDbConnection.CreateInstanceMDAC() +93

[InvalidOperationException: .Net 数据 OLE DB 提供程序(System.Data.OleDb)要求 Microsoft 数据访问组件(MDAC)。请安装 Microsoft 数据访问组件(MDAC) 2.6 或更高版本。]
   System.Data.OleDb.OleDbConnection.CreateInstanceMDAC() +127
   System.Data.OleDb.OleDbConnection.GetObjectPool() +177
   System.Data.OleDb.OleDbConnection.CreateProvider(OleDbConnectionString constr) +13
   System.Data.OleDb.OleDbConnection.Open() +203
   ASP.admin_add_aspx.InsertAdUser(Object sender, EventArgs e) in E:\cartosoft\system\admin_add.aspx:18
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +108
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +57
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain() +1258