You need to use the guid from the uninstall key.
Look in:
HKEY_Local_Machine\Software\Microsoft\Windows\CurrentVersion\Uninstall
and
HKEY_Local_Machine\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall
For english x86 I have:
{90150000-008C-0000-0000-0000000FF1CE}
For english x64 I have:
{90150000-008C-0000-1000-0000000FF1CE}