Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Declare Function RegConnectRegistry Lib "advapi32.dll" Alias "RegConnectRegistryA" (ByVal lpMachineName As String, ByVal hKey As Long, ByRef phkResult As Long) As Long
Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, ByRef phkResult As Long) As Long
Declare Function RegCreateKeyEx Lib "advapi32.dll" Alias "RegCreateKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal Reserved As Long, ByVal lpClass As String, ByVal dwOptions As Long, ByVal samDesired As Long, ByRef lpSecurityAttributes As SECURITY_ATTRIBUTES, ByRef phkResult As Long, ByRef lpdwDisposition As Long) As Long
Declare Function RegDeleteKey Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal hKey As Long, ByVal lpSubKey As String) As Long
Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) As Long
Declare Function RegEnumKey Lib "advapi32.dll" Alias "RegEnumKeyA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, ByVal cbName As Long) As Long
Declare Function RegEnumKeyEx Lib "advapi32.dll" Alias "RegEnumKeyExA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpName As String, ByRef lpcbName As Long, ByVal lpReserved As Long, ByVal lpClass As String, ByRef lpcbClass As Long, ByRef lpftLastWriteTime As FILETIME) As Long
Declare Function RegEnumValue Lib "advapi32.dll" Alias "RegEnumValueA" (ByVal hKey As Long, ByVal dwIndex As Long, ByVal lpValueName As String, ByRef lpcbValueName As Long, ByVal lpReserved As Long, ByRef lpType As Long, ByRef lpData As Byte, ByRef lpcbData As Long) As Long
Declare Function RegFlushKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Declare Function RegGetKeySecurity Lib "advapi32.dll" (ByVal hKey As Long, ByVal SecurityInformation As Long, ByRef pSecurityDescriptor As SECURITY_DESCRIPTOR, ByRef lpcbSecurityDescriptor As Long) As Long
Declare Function RegInstall Lib "advpack.dll" (ByVal hm As Long, ByVal pszSection As String, ByRef pstTable As CSTRTABLE) As Long
Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long
Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As Any, ByVal cbData As Long) As Long
Declare Function RegSaveKey Lib "advapi32.dll" Alias "RegSaveKeyA" (ByVal hKey As Long, ByVal lpFile As String, lpSecurityAttributes As Any) As Long
 

• Lista todas las claves del registro
• Lee todas las subclaves ( o no me acuerdo como se llaman las que tienen datos )
• Usa Instr para comprobar si existe la string dentro de la SubClave