Access is Denied for registry - c++

Question

I am playing with the registry programmatically for the first time, and it's not working that well (but at least I haven't destroyed my computer). Specifically, I keep getting back Error 5 (Access is Denied) from RegCreateKeyEx and RegSetValueEx. The thing that is strangest to me is that when HKEY_CURRENT_USER\Software\dir1\Sub Directory already exists, RegCreateKeyEx fails with Error 5, but when it doesn't already exist, it creates it successfully; and then fails on the RegSetValueEx.
Am I doing anything wrong in this code?
BOOL MyDialog::SaveLocationsToRegistry()
{
HKEY hkey;
DWORD dwDisposition;
DWORD dwType, dwSize;
LONG result = RegCreateKeyEx(HKEY_CURRENT_USER, TEXT("Software\\dir1\\Sub Directory"),
0, NULL, 0, 0, NULL, &hkey, &dwDisposition);
if(result == ERROR_SUCCESS)
{
LPCTSTR szLastFolder = "C:\\Documents and Settings\\user\\My Documents\\Copy of item\0";
dwType = REG_SZ;
dwSize = strlen(szLastFolder)+1;
LONG setResult = RegSetValueEx(hkey, TEXT("LastFolder"), 0, dwType,
(PBYTE)&szLastFolder, dwSize);
RegCloseKey(hkey);
return setResult == ERROR_SUCCESS;
}
else
{
return false;
}
}
Note: The absolute path is only there temporarily. Baby steps ;-)

Answer 1

You're not asking for any access rights. You probably want to specify KEY_WRITE (or something) for the 6th parameter (samDesired).
LONG result = RegCreateKeyEx(HKEY_CURRENT_USER, TEXT("Software\\dir1\\Sub Directory"),
0, NULL, 0, KEY_WRITE, NULL, &hkey, &dwDisposition);