You have to use the following API functions. Search them in
Google where you'll sure find great examples of how to use them and detailed information about what each one does exactly.
code:
Private Declare Function RegOpenKeyEx Lib "advapi32.dll" _
Alias "RegOpenKeyExA" ( _
ByVal hKey As Long, _
ByVal lpSubKey As String, _
ByVal ulOptions As Long, _
ByVal samDesired As Long, _
phkResult As Long) _
As Long
Private Declare Function RegCloseKey Lib "advapi32.dll" ( _
ByVal hKey As Long) _
As Long
Private 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
/ 
