SQL Server 2012 Native Client returns missing DLL error on install

It appears that wscript was running in 64 bit mode and was unable to see the registrations... following the instructions on http://forums.iis.net/t/1154189.aspx I was able to run the createobjects in 32 bit mode (via classic asp) and the components worked as they should. Thanks for the help all!

Not sure, but your trouble seems to come from a side effect of UAC Virtualisation (this article can also help) which exists from Vista and is still valid here. An abstrat is that system parts of the file system and registry are now protected from user access, but to assume that old (32 bits) programs continue working the system make them believe they write on these parts, but in fact he redirect them to user's places. Have a look in "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node" in your registry.

A trouble I encounter recently is that my MSI was built with a 32 bits librarie, so invoking these libraries during installation on a 64 bits machine make UAC virtualisation install my registry keys in Wow6432Node. This Internet article helps me to solve the problem. I use Orca to replace Installutillib.dll from 32 to 64 bits.