You should use WMI to edit registry settings in VB script, and you need to write out HKEY_LOCAL_MACHINE it will never work with HKLM. This is great site to get you started.
If you just need to add registry keys, you can create a .REG file to make it easier. The layout of the .REG file is below:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_ MACHINE\SOFTWARE\BigFix\EnterpriseClient\Settings\Client\India Noida By IP Range]