上传附件的时候出错：

System.UnauthorizedAccessException: Access to the path 'C:\inetpub\wwwroot\URTracker\Attachments\2009\2\' is denied.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, DirectorySecurity dirSecurity)
   at System.IO.Directory.CreateDirectory(String path, DirectorySecurity directorySecurity)
   at Lealsoft.URTracker.BLL.Attachment.PrepareFolder(String folder)
   at Lealsoft.URTracker.Web.Kb.ArticleAttachments.btnSaveFile_Click(Object sender, EventArgs e)
   at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
   at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
   at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
   at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
   at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

在资源管理器里设置C:\inetpub\wwwroot\URTracker\Attachments\ 目录的权限，给everyone账号完全控制的权限。然后点“高级”按钮，在弹出的对话框里选中最下面的那个选项，确认。