Power Switch for the Azure Emulator processes. Make it easy to programmatically turn Storage or Compute emulation On or Off.

AzureEmulatorPowerSwitch.cs

using System;
using System.Diagnostics;
using System.IO;

namespace DevPartners
{
   /// <summary>
   /// Power Switch for the Azure Emulator processes. Make it easy to programmatically turn Storage or Compute emulation On or Off.
   /// </summary>
   public static class AzureEmulatorPowerSwitch
   {
      public static readonly string CsRunExeName = "csrun.exe";
      public static readonly string CsRunStartStorageEmulatorParams = "/devstore";
      public static readonly string CsRunStopStorageEmulatorParams = "/devstore:shutdown";
      public static readonly string CsRunStartComputeEmulatorParams = "/devfabric";
      public static readonly string CsRunStopComputeEmulatorParams = "/devfabric:shutdown";
      public static readonly TimeSpan DefaultTimeout = TimeSpan.FromSeconds(2);

      public static string GetAzureEmulatorDirectoryPath(string version = default(string))
      {
         const string windowsAzureEmulatorInstallPath_EnvironmentVariableName = "WindowsAzureEmulatorInstallPath"; // will probably NEVER be visible to this process - bad choice - see results of registry spelunking down below
         var windowsAzureEmulatorInstallPath =
            Environment.GetEnvironmentVariable(windowsAzureEmulatorInstallPath_EnvironmentVariableName,
                                               EnvironmentVariableTarget.User);
         if (windowsAzureEmulatorInstallPath == null)
            windowsAzureEmulatorInstallPath = @"C:\Program Files\Microsoft SDKs\Windows Azure\Emulator";
         return windowsAzureEmulatorInstallPath;
      }

      public static string GetAzureCsrunExePath(string version = default(string))
      {
         return Path.Combine(GetAzureEmulatorDirectoryPath(version), AzureEmulatorStarter.CsRunExeName);
      }

      public static void StartStorage()
      {
         ExecuteCsRunExeWithParam(AzureEmulatorStarter.CsRunStartStorageEmulatorParams);
      }

      public static void StopStorage()
      {
         ExecuteCsRunExeWithParam(AzureEmulatorStarter.CsRunStopStorageEmulatorParams);
         // process name is probably "DSServiceLDB.exe" but we don't care about such details; let csrun.exe deal with it
      }

      public static void StartCompute()
      {
         ExecuteCsRunExeWithParam(AzureEmulatorStarter.CsRunStartComputeEmulatorParams);
      }

      public static void StopCompute()
      {
         ExecuteCsRunExeWithParam(AzureEmulatorStarter.CsRunStopComputeEmulatorParams);
      }

      private static void ExecuteCsRunExeWithParam(string csRunParam)
      {
         using (var csrun = Process.Start(GetAzureCsrunExePath(), csRunParam))
         {
            var timeoutInMilliseconds = Convert.ToInt32(DefaultTimeout.TotalMilliseconds);
            csrun.WaitForExit(timeoutInMilliseconds);
         }
      }

      /* registry setting spelunking shows...

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Features\8C975987EDDF6EF4A84863F619256BE3
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\A1592A1D4CA5CF551B84E9BA2B9E2ADA
8C975987EDDF6EF4A84863F619256BE3
Value Data = ...


This key:
HKEY_CLASSES_ROOT\Installer\UpgradeCodes\905421376DAC49546AAD863467651137
Has this value name:
8C975987EDDF6EF4A84863F619256BE3
No value data

       -- FROM POWERSHELL --

PS HKLM:\SOFTWARE\Microsoft\Microsoft SDKs\ServiceHosting> Get-ChildItem .


    Hive: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\ServiceHosting


Name                           Property
----                           --------
v1.8                           InstallPath              : C:\Program Files\Microsoft SDKs\Windows Azure\.NET
                               SDK\2012-10\
                               SchemaPath               : C:\Program Files\Microsoft SDKs\Windows Azure\.NET
                               SDK\2012-10\schemas
                               FullVersion              : 1.8.31004.1351
                               MajorVersion             : 1
                               ServicePack              : 0
                               ToolsVersionSupportLevel : 16
v2.0                           InstallPath              : C:\Program Files\Microsoft SDKs\Windows Azure\.NET SDK\v2.0\
                               SchemaPath               : C:\Program Files\Microsoft SDKs\Windows Azure\.NET
                               SDK\v2.0\schemas
                               FullVersion              : 2.0.6493.2
                               MajorVersion             : 2
                               ServicePack              : 0
                               ToolsVersionSupportLevel : 16
       */
   }
}