Here is a link to the TriExporter version I use without problems on Windows 7 64 bits.
It is version 0.4.2.0 probably not the latest. This is not the .Net version which never worked for me
. The zip file is around 450Ko. Just unzip and launch.
PS : If your TriExporter is crashing, it could also be because you set the wrong folder to the EvE files. Then simply open your registry editor, crawl to HKEY_CURRENT_USER\Software\TriExporter and delete the key. Launch TriExporter again, menu "file -> set folder" and that should do it.