Noooo! ....... no one will be able to help you really as that thing is outdated and so far back, it's not funny anymore. Please have a heart
1) can you please tell us the bitness of your windows as @bobc asked?
(64bit programs don't run under 32bit Windows and produce the error you observe..)
2) can you check that the download is not corrupted (essentially answering @davidsrsb 's question) ?
(as both files, 32bit and 64bit cause the same error we can assume you got a different problem, maybe corrupt downloads.. reason? damaged memory modules in your computer, broken router, etc..)
This is what the downloads look like for me in Windows 7 Home Premium 64bit and both are start-able:
PS: hashtab is an addon I installed some years ago. Use at your own risk. I'm not affiliated.
PPS: first indication of badly corrupt files would be different file sizes (in bytes as you can see them under Properties>General). Not so badly damaged files will have different checksums but the same size, thus the hashtab addon.