If I'm understanding this correctly, it isn't a driver issue. You're trying to extract a firmware update from the supplied exe file, right? Have you tried running it anyway? Did it throw an error that may be useful?
If it won't run at all, try right clicking the program, go to properties, compatibility, and tick the box to "Run this in compatibility mode for" and select Windows XP SP2. If it's like other firmware packages, it should just extract the bin file from the archive.
Additionally, if you have Winrar installed (or can get it), just right click the supplied exe and select "Extract to [filename]\" and that will create a folder with the bin file in it.
Then you can carefully follow the upgrade instructions provided. Hope this helps.
Originally posted by boriscleto The RAW Codec has been updated for Windows 7, but only the 32-bit version. If you are using the 64-bit version of Windows 7 you are out of luck.
EDIT: If you need a 64 bit DNG codec,
get this one. Works a treat. If you shoot PEF, well, switch to DNG already.