问个关于动网新闻系统的问题

问题描述：

我的系统是windows 2000 SP4
IE 6.0
MDAC2.8
.NET FRAMWORK 2.0
浏览的时候出现以下问题
Server Error in '/test' Application.
--------------------------------------------------------------------------------

Microsoft Jet 数据库引擎打不开文件'D:\Downloads\test'。 它已经被别的用户以独占方式打开，或没有查看数据的权限。
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.OleDb.OleDbException: Microsoft Jet 数据库引擎打不开文件'D:\Downloads\test'。 它已经被别的用户以独占方式打开，或没有查看数据的权限。

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[OleDbException (0x80004005): Microsoft Jet 数据库引擎打不开文件'D:\Downloads\test'。 它已经被别的用户以独占方式打开，或没有查看数据的权限。]
System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) +1054737
System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) +53
System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +27
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +47
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.OleDb.OleDbConnection.Open() +37
DvNews.DAL.DBHelper.84a46dc89a9c670f() +53
DvNews.DAL.DBHelper.ExecuteReader(CommandType cmdType, String cmdText, OleDbParameter[] cmdParms) +33
DvNews.DAL.Config.GetConfig() +2100
DvNews.Pages.BasePage.Page_Init(Object sender, EventArgs e) +1065
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
System.Web.UI.Control.OnInit(EventArgs e) +2069692
System.Web.UI.Page.OnInit(EventArgs e) +9
System.Web.UI.Control.InitRecursive(Control namingContainer) +321
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +692

问题解答：

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