Delphi-PRAXiS - Problem beim Öffnen der XE7 Update Seite

Hallo,

wenn ich versuche über den Link:

http://cc.embarcadero.com/item/29934
das XE7 Update#1 runterzuladen bekomme ich folgendes angezeigt:

Server Error in '/' Application.
Could not load file or assembly 'System.Web.Extensions' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.FileLoadException: Could not load file or assembly 'System.Web.Extensions' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))

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.

Assembly Load Trace: The following information can be helpful to determine why the assembly 'System.Web.Extensions' could not be loaded.

WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

Stack Trace:

[FileLoadException: Could not load file or assembly 'System.Web.Extensions' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))]

[FileLoadException: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))]
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) +48
System.Reflection.Assembly.InternalLoad(AssemblyNa me assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +278
System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +145
System.Reflection.Assembly.Load(String assemblyString) +28
System.Web.Configuration.CompilationSection.LoadAs semblyHelper(String assemblyName, Boolean starDirective) +47

[ConfigurationErrorsException: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))]
System.Web.Configuration.CompilationSection.LoadAs semblyHelper(String assemblyName, Boolean starDirective) +601
System.Web.Configuration.CompilationSection.LoadAl lAssembliesFromAppDomainBinDirectory() +193
System.Web.Configuration.CompilationSection.LoadAs sembly(AssemblyInfo ai) +45
System.Web.Compilation.BuildManager.GetReferencedA ssemblies(CompilationSection compConfig) +178
System.Web.Compilation.BuildProvidersCompiler..cto r(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +56
System.Web.Compilation.ApplicationBuildProvider.Ge tGlobalAsaxBuildResult(Boolean isPrecompiledApp) +235
System.Web.Compilation.BuildManager.CompileGlobalA sax() +53
System.Web.Compilation.BuildManager.EnsureTopLevel FilesCompiled() +406

[HttpException (0x80004005): Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))]
System.Web.Compilation.BuildManager.ReportTopLevel CompilationException() +60
System.Web.Compilation.BuildManager.EnsureTopLevel FilesCompiled() +506
System.Web.Hosting.HostingEnvironment.Initialize(A pplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +779

[HttpException (0x80004005): Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))]
System.Web.HttpRuntime.FirstRequestInit(HttpContex t context) +551
System.Web.HttpRuntime.EnsureFirstRequestInit(Http Context context) +78
System.Web.HttpRuntime.ProcessRequestInternal(Http WorkerRequest wr) +258