Very doubtful. First off, it's written for a far newer OS, and second, it appears to need one or more DLLs from the Windows Mobile 5 and/or 6 ROM, which are not available to download and can't be copied off a Windows Mobile device.
(Office Mobile 2010 was available for download from Microsoft for a while at least, but I couldn't even get it to work on a CE 6 device.
)