Portable Software for USB Drive

[DG]

I just got a 64MB USB Flash Drive and want am looking for recommendations of software that can be run directly from the drive itself such as email, instant messaging, etc. without any need to install anythng on to the actual PC it's self - so for example when I'm on holiday in an internet cafe I can plug this in and and collect all my emails and read offline on a non internet connect PC.

so far I've found Fox Mail and PopCorn Mail

But I need one that does IMAP - any suggestions?

Also for instant messaging that could run off the drive

[Eul Grepus]

tricky one that. the flash "drive" is more like a storage device than anything else. i just use mine for keeping various bits n pieces on that come in handy. From mail programs, messengers etc, they need to write to the computers registry, and they read values from dlls, registry keys etc. so its hard to tell really.
sorry