*Hi,* *I am trying to set up a web application in IIS 7 that has its content in a shared folder over the network.* *The IIS 7 is in Windows Server 2008 R2 and the folder is in another Windows Server 2008 R2 in a drive.....* The error message that I am getting is: *Exception Details: *System.Security.SecurityException: Request failed. *Source Error:* An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. *Stack Trace:* [SecurityException: Request failed.] System.RuntimeTypeHandle._GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, Boolean loadTypeFromPartialName) +0 System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark) +62 System.RuntimeType.PrivateGetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark) +42 System.Type.GetType(String typeName) +65 System.CodeDom.Compiler.CompilerInfo.get_IsCodeDomProviderTypeValid() +13 System.Web.Compilation.CompilationUtil.GetRecompilationHash(CompilationSection ps) +3182 System.Web.Configuration.CompilationSection.get_RecompilationHash() +73 System.Web.Compilation.BuildManager.CheckTopLevelFilesUpToDate2(StandardDiskBuildResultCache diskCache) +684 System.Web.Compilation.BuildManager.CheckTopLevelFilesUpToDate(StandardDiskBuildResultCache diskCache) +50 System.Web.Compilation.BuildManager.Initialize() +320 System.Web.Compilation.BuildManager.InitializeBuildManager() +11225183 System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags) +498 ------------------------------ *Version Information:* Microsoft .NET Framework Version:2.0.50727.4984; ASP.NET Version:2.0.50727.4971 *Please assist....*