转载自：http://qiao198.cnblogs.com/archive/2005/08/11/212246.html

“/”应用程序中的服务器错误。
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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: 访问被拒绝：“Iesi.Collections”。

源错误:

行 196：    <add assembly="System.EnterpriseServices, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
行 197：    <add assembly="System.Web.Mobile, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
行 198：    <add assembly="*"/>
行 199：   </assemblies>
行 200：  </compilation>
 源文件: c:\windows\microsoft.net\framework\v1.1.4322\Config\machine.config    行: 198

程序集加载跟踪: 下列信息有助于确定程序集“Iesi.Collections”无法加载的原因。
=== Pre-bind state information ===
LOG: DisplayName = Iesi.Collections
 (Partial)
LOG: Appbase = file:///E:/研发.net/NHB
LOG: Initial PrivatePath = bin
Calling assembly : (Unknown).
===

LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Post-policy reference: Iesi.Collections
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/root/f995c84b/5402f97e/Iesi.Collections.DLL.
LOG: Attempting download of new URL file:///C:/WINDOWS/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/root/f995c84b/5402f97e/Iesi.Collections/Iesi.Collections.DLL.
LOG: Attempting download of new URL file:///E:/研发.net/NHB/bin/Iesi.Collections.DLL.
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: Iesi.Collections, Version=1.0.0.1, Culture=neutral, PublicKeyToken=154fdcb44c4484fc