Request: Yahoo_autosync.exe

My work-pc is so heavily locked down that i haven't been able to find an app that synchronizes Outlook (in Exchange mode) with Yahoo Calendar or Google Calendar.
With locked down, i mean no admin rights, no possibility to load add-ins in Outlook, no installation of .net framework 2.0.

It seems to me that Yahoo Autosync (http://calendar.mail.yahoo.com/YYY,436912/srt,0/?v=120&a0=2&pv=61) comes close to a lightweigth sync client, but there are stil registry entries involved.

Can anyone make an true portable app out of yahoo autosysnc?

A portable app to sync to Google Calendar is fine too.