Embed asp as HTM pages and access DB

I would like to write asp pages but have them saved as .htm. How do I setup IIS 7.5 to run .htm files as if they are .asp files?

I can do it if I disable 32-bit applications in the app pool, but then I can't open a database connection directly to Access DB using ACE.

How do I get both to work?

I've gone to: Handler Mappings and added a script map with the following settings:

Request Path: *.htm

Executable: %windir%\system32\inetsrv\asp.dll

Invoke Handler if request is mapped to: File

Verbs: GET, POST, HEAD

Access: Script