Application page and powershell execution

Question

When I try to execute following code at Application page 
                Runspace runspace = RunspaceFactory.CreateRunspace(InitialSessionState.CreateDefault());
runspace.Open(); //this line of code raises exception
                string script = "New-SPSite -URL http://testspweb/sites/testsitecollection500
-OwnerAlias \"domain\\user\" –Language 1033 -CompatibilityLevel 14";
                PowerShell powerShellCommand = PowerShell.Create();
                powerShellCommand.Runspace = runspace;
                powerShellCommand.AddScript("Add-PsSnapin Microsoft.SharePoint.PowerShell");
                powerShellCommand.AddScript(script);
                powerShellCommand.AddScript("Update-SPProfilePhotoStore
-MySiteHostLocation http://testspweb/personal/spmember");
                foreach (string result in powerShellCommand.Invoke<string>())
                runspace.Close();
                PowerShell ps = PowerShell.Create();
I get following error:
{"Requested registry access is not allowed."}
   at Microsoft.Win32.RegistryKey.OpenSubKey(String name, Boolean writable)
   at System.Environment.GetEnvironmentVariable(String variable, EnvironmentVariableTarget target)
   at System.Management.Automation.ModuleIntrinsics.GetExpandedEnvironmentVariable(String name, EnvironmentVariableTarget target)
   at System.Management.Automation.ModuleIntrinsics.SetModulePath()
   at System.Management.Automation.ExecutionContext.InitializeCommon(AutomationEngine engine, PSHost hostInterface)
   at System.Management.Automation.AutomationEngine..ctor(PSHost hostInterface, RunspaceConfiguration runspaceConfiguration, InitialSessionState iss)
   at System.Management.Automation.Runspaces.LocalRunspace.DoOpenHelper()
   at System.Management.Automation.Runspaces.RunspaceBase.CoreOpen(Boolean syncCall)
   at GenusMUIntergation.Code.Handlers.UpdateSharepointPhoto.ProcessRequest(HttpContext context)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
HResult -2146233078
How can i resolve this problem?

Answer 1

I don't think is possible - to execute powershell in process that runs like IIS process.
From first thread:
" SPSecurity.RunWithElevatedPrivileges
in your codeRunwithElevatedPrivileges will run the code under App Pool identity.Powershell should be run under Farm Account credentials as a Standard.Should we try,SPSecurity.RunWithElevatedPrivileges and use UserToken of Farm Account user.Please suggest or correct me, if I am wrong."
The main problem that if I open page/httphandler with farm admin account I get exception (Microsoft.Win32.RegistryKey.OpenSubKey ) related with access rights to windows registry.
When I try to execute command in SPSecurity.RunWithElevatedPrivileges , IIS App Pool identity dont have enouth access rights (it is not farm admin)
I think that API for usage powershell is not intended to be executed from pages/webpart/httphandler/any IIS App pool process.
API for usage powershell was intended for console applications.