C# Signature:

[DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
public static extern bool InitiateSystemShutdownEx(
    string lpMachineName,
    string lpMessage,
    uint dwTimeout,
    bool bForceAppsClosed,
    bool bRebootAfterShutdown,
    ShutdownReason dwReason);

  [Flags]
  public enum ShutdownReason : uint
  {
    // Microsoft major reasons.
    SHTDN_REASON_MAJOR_OTHER        = 0x00000000,
    SHTDN_REASON_MAJOR_NONE         = 0x00000000,
    SHTDN_REASON_MAJOR_HARDWARE         = 0x00010000,
    SHTDN_REASON_MAJOR_OPERATINGSYSTEM      = 0x00020000,
    SHTDN_REASON_MAJOR_SOFTWARE         = 0x00030000,
    SHTDN_REASON_MAJOR_APPLICATION      = 0x00040000,
    SHTDN_REASON_MAJOR_SYSTEM           = 0x00050000,
    SHTDN_REASON_MAJOR_POWER        = 0x00060000,
    SHTDN_REASON_MAJOR_LEGACY_API       = 0x00070000,

    // Microsoft minor reasons.
    SHTDN_REASON_MINOR_OTHER        = 0x00000000,
    SHTDN_REASON_MINOR_NONE         = 0x000000ff,
    SHTDN_REASON_MINOR_MAINTENANCE      = 0x00000001,
    SHTDN_REASON_MINOR_INSTALLATION     = 0x00000002,
    SHTDN_REASON_MINOR_UPGRADE          = 0x00000003,
    SHTDN_REASON_MINOR_RECONFIG         = 0x00000004,
    SHTDN_REASON_MINOR_HUNG         = 0x00000005,
    SHTDN_REASON_MINOR_UNSTABLE         = 0x00000006,
    SHTDN_REASON_MINOR_DISK         = 0x00000007,
    SHTDN_REASON_MINOR_PROCESSOR        = 0x00000008,
    SHTDN_REASON_MINOR_NETWORKCARD      = 0x00000000,
    SHTDN_REASON_MINOR_POWER_SUPPLY     = 0x0000000a,
    SHTDN_REASON_MINOR_CORDUNPLUGGED    = 0x0000000b,
    SHTDN_REASON_MINOR_ENVIRONMENT      = 0x0000000c,
    SHTDN_REASON_MINOR_HARDWARE_DRIVER      = 0x0000000d,
    SHTDN_REASON_MINOR_OTHERDRIVER      = 0x0000000e,
    SHTDN_REASON_MINOR_BLUESCREEN       = 0x0000000F,
    SHTDN_REASON_MINOR_SERVICEPACK      = 0x00000010,
    SHTDN_REASON_MINOR_HOTFIX           = 0x00000011,
    SHTDN_REASON_MINOR_SECURITYFIX      = 0x00000012,
    SHTDN_REASON_MINOR_SECURITY         = 0x00000013,
    SHTDN_REASON_MINOR_NETWORK_CONNECTIVITY = 0x00000014,
    SHTDN_REASON_MINOR_WMI          = 0x00000015,
    SHTDN_REASON_MINOR_SERVICEPACK_UNINSTALL = 0x00000016,
    SHTDN_REASON_MINOR_HOTFIX_UNINSTALL     = 0x00000017,
    SHTDN_REASON_MINOR_SECURITYFIX_UNINSTALL = 0x00000018,
    SHTDN_REASON_MINOR_MMC          = 0x00000019,
    SHTDN_REASON_MINOR_TERMSRV          = 0x00000020,

    // Flags that end up in the event log code.
    SHTDN_REASON_FLAG_USER_DEFINED      = 0x40000000,
    SHTDN_REASON_FLAG_PLANNED           = 0x80000000,
    SHTDN_REASON_UNKNOWN            = SHTDN_REASON_MINOR_NONE,
    SHTDN_REASON_LEGACY_API         = (SHTDN_REASON_MAJOR_LEGACY_API | SHTDN_REASON_FLAG_PLANNED),

    // This mask cuts out UI flags.
    SHTDN_REASON_VALID_BIT_MASK         = 0xc0ffffff
  }

VB Signature:

Not Entered

User-Defined Types:

None.

Notes:

lpMachineName: The network name of the computer to be shut down. If lpMachineName is NULL or an empty string, the function shuts down the local computer.

dwReason: The ShutdownReason enum can be used for this parameter.

Tips & Tricks:

None

Sample Code:

None

Alternative Managed API:

None

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