服务器安全狗导致ASP.NET网站运行出错的一个案例

[ArgumentException: 已添加项。字典中的关键字:“RegistryPermission”所添加的关键字:“RegistryPermission”]
   System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add) +7482408
   System.Collections.Hashtable.Add(Object key, Object value) +11
   System.Security.Policy.PolicyLevel.FromXml(SecurityElement e) +307
   System.Security.SecurityManager.LoadPolicyLevelFromStringHelper(String str, String path, PolicyLevelType type) +207
   System.Security.SecurityManager.LoadPolicyLevelFromString(String str, PolicyLevelType type) +37
   System.Web.HttpRuntime.CreatePolicyLevel(String configFile, String appDir, String binDir, String strOriginUrl, Boolean& foundGacToken) +420
   System.Web.HttpRuntime.SetTrustLevel(TrustSection trustSection, SecurityPolicySection securityPolicySection) +8913358
   System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags) +186
[HttpException (0x80004005): 已添加项。字典中的关键字:“RegistryPermission”所添加的关键字:“RegistryPermission”]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +8886319
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +85
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +259
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版本信息: Microsoft .NET Framework 版本:2.0.50727.3053; ASP.NET 版本:2.0.50727.3053