asp.net程序在IIS中运行出这个错？

“/fengan”应用程序中的服务器错误。
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未能加载文件或程序集“PowerTalkBox”或它的某一个依赖项。系统找不到指定的路径。
说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.IO.FileNotFoundException: 未能加载文件或程序集“PowerTalkBox”或它的某一个依赖项。系统找不到指定的路径。

源错误:

执行当前 Web 请求期间生成了未处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。

程序集加载跟踪: 下列信息有助于确定程序集“PowerTalkBox”无法加载的原因。

警告: 程序集绑定日志记录被关闭。
要启用程序集绑定失败日志记录，请将注册表值 [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD)设置为 1。
注意: 会有一些与程序集绑定失败日志记录关联的性能损失。
要关闭此功能，请移除注册表值 [HKLM\Software\Microsoft\Fusion!EnableLog]。

堆栈跟踪:

[FileNotFoundException: 未能加载文件或程序集“PowerTalkBox”或它的某一个依赖项。系统找不到指定的路径。]

[FileNotFoundException: 未能加载文件或程序集“PowerTalkBox, Version=2.0.2652.38107, Culture=neutral, PublicKeyToken=null”或它的某一个依赖项。系统找不到指定的路径。]
   System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
   System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +54
   System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +211
   System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +141
   System.Reflection.Assembly.Load(String assemblyString) +25
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +32

[ConfigurationErrorsException: 未能加载文件或程序集“PowerTalkBox, Version=2.0.2652.38107, Culture=neutral, PublicKeyToken=null”或它的某一个依赖项。系统找不到指定的路径。]
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +596
   System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +211
   System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +46
   System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +177
   System.Web.Compilation.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +185
   System.Web.Compilation.CodeDirectoryCompiler.GetCodeDirectoryAssembly(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories, Boolean isDirectoryAllowed) +350
   System.Web.Compilation.BuildManager.CompileCodeDirectory(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories) +125
   System.Web.Compilation.BuildManager.CompileCodeDirectories() +525
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +448

[HttpException (0x80004005): 未能加载文件或程序集“PowerTalkBox, Version=2.0.2652.38107, Culture=neutral, PublicKeyToken=null”或它的某一个依赖项。系统找不到指定的路径。]
   System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +57
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +612
   System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +644

[HttpException (0x80004005): 未能加载文件或程序集“PowerTalkBox, Version=2.0.2652.38107, Culture=neutral, PublicKeyToken=null”或它的某一个依赖项。系统找不到指定的路径。]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +3465427
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +69
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +279

--------------------编程问答-------------------- 重新生成网站试下 --------------------编程问答-------------------- 重新发布网站下 --------------------编程问答-------------------- 从新发布看下虚拟路径 --------------------编程问答-------------------- 如果在vs里调试正常的话请确定你是先装的vs后装的IIS
即使正版的也不能保证完全没问题建议先装vs 后装IIS --------------------编程问答-------------------- 请先确保PowerTalkBox.dll文件存在 --------------------编程问答-------------------- 重新生成解决方案，确保PowerTalkBox.dll存在

补充：.NET技术 ,  ASP.NET