$InvocationPath = Split-Path -Path $MyInvocation.MyCommand.Path -Parent

Add-Type -TypeDefinition @'

using System;
using System.Runtime.InteropServices;

namespace DynaLoadAPI
{
    public class NtPowerCall
    {
        public enum SYSTEM_POWER_STATE
        {
            PowerSystemUnspecified = 0,
            PowerSystemWorking = 1,
            PowerSystemSleeping1 = 2,
            PowerSystemSleeping2 = 3,
            PowerSystemSleeping3 = 4,
            PowerSystemHibernate = 5,
            PowerSystemShutdown = 6,
            PowerSystemMaximum = 7
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct BATTERY_REPORTING_SCALE
        {                                                   // typedef struct {
            public uint Granularity;                        //    DWORD       Granularity;
            public uint Capacity;                           //    DWORD       Capacity;
        }                                                   //} BATTERY_REPORTING_SCALE, *PBATTERY_REPORTING_SCALE;

        [StructLayout(LayoutKind.Sequential)]
        public struct SYSTEM_POWER_CAPABILITIES
        {                                                   // typedef struct {
                                                            //   // Misc supported system features
            public byte PowerButtonPresent;                 //   BOOLEAN                 PowerButtonPresent;
            public byte SleepButtonPresent;                 //   BOOLEAN                 SleepButtonPresent;
            public byte LidPresent;                         //   BOOLEAN                 LidPresent;
            public byte SystemS1;                           //   BOOLEAN                 SystemS1;
            public byte SystemS2;                           //   BOOLEAN                 SystemS2;
            public byte SystemS3;                           //   BOOLEAN                 SystemS3;
            public byte SystemS4;           // hibernate    //   BOOLEAN                 SystemS4;
            public byte SystemS5;           // off          //   BOOLEAN                 SystemS5;
            public byte HiberFilePresent;                   //   BOOLEAN                 HiberFilePresent;
            public byte FullWake;                           //   BOOLEAN                 FullWake;
            public byte VideoDimPresent;                    //   BOOLEAN                 VideoDimPresent;
            public byte ApmPresent;                         //   BOOLEAN                 ApmPresent;
            public byte UpsPresent;                         //   BOOLEAN                 UpsPresent;

                                                            //   // Processors
            public byte ThermalControl;                     //   BOOLEAN                 ThermalControl;
            public byte ProcessorThrottle;                  //   BOOLEAN                 ProcessorThrottle;
            public byte ProcessorMinThrottle;               //   BYTE                    ProcessorMinThrottle;
            public byte ProcessorMaxThrottle;               //   BYTE                    ProcessorMaxThrottle;
            public byte FastSystemS4;                       //   BOOLEAN                 FastSystemS4;
            public byte Hiberboot;                          //   BOOLEAN                 HiberBoot;
            public byte WakeAlarmPresent;                   //   BOOLEAN                 WakeAlarmPresent;
            public byte AoAc;                               //   BOOLEAN                 AoAc;

                                                            //   // Disk
            public byte DiskSpinDown;                       //   BOOLEAN                 DiskSpinDown;

                                                            //   // HiberFile
            public byte HiberFileType;                      //   BYTE                    spare3[8];
            public byte AoAcConnectivitySupported;          //
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
            public byte[] spare3;

                                                            //   // System Battery
            public byte SystemBatteriesPresent;             //   BOOLEAN                 SystemBatteriesPresent;
            public byte BatteriesAreShortTerm;              //   BOOLEAN                 BatteriesAreShortTerm;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
            public BATTERY_REPORTING_SCALE[]  BatteryScale; //   BATTERY_REPORTING_SCALE BatteryScale[3];

                                                            //   // Wake
            public SYSTEM_POWER_STATE AcOnLineWake;         //   SYSTEM_POWER_STATE      AcOnLineWake;
            public SYSTEM_POWER_STATE SoftLidWake;          //   SYSTEM_POWER_STATE      SoftLidWake;
            public SYSTEM_POWER_STATE RtcWake;              //   SYSTEM_POWER_STATE      RtcWake;
            public SYSTEM_POWER_STATE MinDeviceWakeState;   //   SYSTEM_POWER_STATE      MinDeviceWakeState;
            public SYSTEM_POWER_STATE DefaultLowLatencyWake;//   SYSTEM_POWER_STATE      DefaultLowLatencyWake;
                                                            // } SYSTEM_POWER_CAPABILITIES, *PSYSTEM_POWER_CAPABILITIES;
        }

        [System.Runtime.InteropServices.DllImport("PowrProf.dll")]
        static extern bool GetPwrCapabilities(out SYSTEM_POWER_CAPABILITIES rf);

        public NtPowerCall()
        {
            bool _blRetVal = false;

            _blRetVal = _pfnGetPwrCapabilities();
        }

        public static bool classInitialized;
        public static SYSTEM_POWER_CAPABILITIES SystemPowerCapabilities;

        static bool _pfnGetPwrCapabilities()
        {
            bool _blRetVal = false;
            SYSTEM_POWER_CAPABILITIES _Data;

            try
            {
                _blRetVal = GetPwrCapabilities(out _Data);
                SystemPowerCapabilities = _Data;
                classInitialized = true;
            } catch {
            }


            return (_blRetVal);
        }


    } // End -- NtPowerCall Class

    public class Kernel32DllCall
    {
        [System.Runtime.InteropServices.DllImport("kernel32.dll")]
        static extern bool Wow64DisableWow64FsRedirection( out int OldValue );

        [System.Runtime.InteropServices.DllImport("kernel32.dll")]
        static extern bool Wow64RevertWow64FsRedirection( int OldValue );

        public static int      ptrWow64OldValue;
        public static bool     blValid_Wow64OldValue;

        public Kernel32DllCall()
        {
            // Initialize for the class member(s)
            blValid_Wow64OldValue = false;
        }

        // Public Functions for PowerShell
        public bool dll_DisableWow64FsRedirection()
        {
            bool _blRetVal = false;

            if( blValid_Wow64OldValue == false ){
                _blRetVal = Wow64DisableWow64FsRedirection( out ptrWow64OldValue );
                if( _blRetVal != false ){
                    blValid_Wow64OldValue = true;
                }            
            } else {
                _blRetVal = true;
            }

            return( _blRetVal );
        }

        public bool dll_RevertWow64FsRedirection()
        {
            bool _blRetVal = false;
            if( blValid_Wow64OldValue != false ){
                _blRetVal = Wow64RevertWow64FsRedirection( ptrWow64OldValue );
                if( _blRetVal != false ){
                    blValid_Wow64OldValue = false;
                }
            } else {
                _blRetVal = true;
            }              

            return( _blRetVal );
        }


    } // End -- Kernel32DllCall Class
}

'@

$SysPwrCaps = New-Object -TypeName DynaLoadAPI.NtPowerCall
$Kern32Dll  = New-Object -TypeName DynaLoadAPI.Kernel32DllCall

function DisableWow64FsRedirection
{
    if( $Kern32Dll ){
        $blRetVal = $Kern32Dll.dll_DisableWow64FsRedirection();
    }

} # EOF

function RevertWow64FsRedirection
{
    if( $Kern32Dll ){
        $blRetVal = $Kern32Dll.dll_RevertWow64FsRedirection();
    }

} # EOF

Export-ModuleMember -Function DisableWow64FsRedirection
Export-ModuleMember -Function RevertWow64FsRedirection

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