紧急求助各位网友web.config文件出错～～

配置错误 
说明: 在处理向该请求提供服务所需的配置文件时出错。请检查下面的特定错误详细信息并适当地修改配置文件。 分析器错误信息: 找不到文件或程序集名称“CrystalDecisions.CrystalReports.Engine”，或找不到它的一个依赖项。源错误: 
行 13：           调试 ASP.NET 文件的文档。
行 14：     -->
行 15：     <compilation defaultLanguage="c#" debug="true"><assemblies><add assembly="CrystalDecisions.CrystalReports.Engine, Version=9.1.5000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/><add assembly="CrystalDecisions.ReportSource, Version=9.1.5000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/><add assembly="CrystalDecisions.Shared, Version=9.1.5000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/><add assembly="CrystalDecisions.Web, Version=9.1.5000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"/></assemblies></compilation>
行 16： 
行 17：     <!--  自定义错误信息
 源文件: D:\server_www\tianyi.com\www\web.config    行: 15 程序集加载跟踪: 下列信息有助于确定程序集“CrystalDecisions.CrystalReports.Engine”无法加载的原因。
=== Pre-bind state information ===
LOG: DisplayName = CrystalDecisions.CrystalReports.Engine, Version=9.1.5000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304
 (Fully-specified)
LOG: Appbase = file:///D:/server_www/tianyi.com/www
LOG: Initial PrivatePath = bin
Calling assembly : (Unknown).
===LOG: Publisher policy file is not found.
LOG: No redirect found in host configuration file (C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\aspnet.config).
LOG: Using machine configuration file from C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\config\machine.config.
LOG: Post-policy reference: CrystalDecisions.CrystalReports.Engine, Version=9.1.5000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/tianyi/e72198c8/ab365097/CrystalDecisions.CrystalReports.Engine.DLL.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/tianyi/e72198c8/ab365097/CrystalDecisions.CrystalReports.Engine/CrystalDecisions.CrystalReports.Engine.DLL.
LOG: Attempting download of new URL file:///D:/server_www/tianyi.com/www/bin/CrystalDecisions.CrystalReports.Engine.DLL.
LOG: Attempting download of new URL file:///D:/server_www/tianyi.com/www/bin/CrystalDecisions.CrystalReports.Engine/CrystalDecisions.CrystalReports.Engine.DLL.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/tianyi/e72198c8/ab365097/CrystalDecisions.CrystalReports.Engine.EXE.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/tianyi/e72198c8/ab365097/CrystalDecisions.CrystalReports.Engine/CrystalDecisions.CrystalReports.Engine.EXE.
LOG: Attempting download of new URL file:///D:/server_www/tianyi.com/www/bin/CrystalDecisions.CrystalReports.Engine.EXE.
LOG: Attempting download of new URL file:///D:/server_www/tianyi.com/www/bin/CrystalDecisions.CrystalReports.Engine/CrystalDecisions.CrystalReports.Engine.EXEhttp://www.cnshentong.com/tianyi/
放到这个服务器上出错，2003的服务器，我在本地调试以的，也是2003的，不知道为什么，请高手帮我分析一下好吗？