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regdeletekeyex (advapi32)
The RegDeleteKeyEx function deletes a subkey from the specified platform-specific view of the registry. Use only on 64-bit Operating Systems.

C# Signature:

[DllImport("advapi32.dll", EntryPoint = "RegDeleteKeyEx", SetLastError = true)]
public static extern int RegDeleteKeyEx(
    UIntPtr hKey,
    string lpSubKey,
    uint samDesired, // see Notes below
    uint Reserved);

VB Signature:

Declare Function RegDeleteKeyEx Lib "advapi32.dll" (hKey As UIntPtr, lpSubKey As String, samDesired As UInteger, Reserved As UInteger) As Integer

User-Defined Types:


Alternative Managed API:

Microsoft.Win32.RegistryKey.DeleteSubKey() (the non-WOW64 version)


Use only on 64-bit operating systems!

samDesired values:

Value Meaning
KEY_WOW64_32KEY 0x0200 Delete the key from the 32-bit registry view.
KEY_WOW64_64KEY 0x0100 Delete the key from the 64-bit registry view.

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