Portable PostgreSQL for development off a usb drive

Question

In order to take some development work home I have to be able to run a PostgreSQL database.

I don't want to install anything on the machine at home. Everything should run off the usb drive.

http://stackoverflow.com/questions/408511/what-development-tools-do-you-carry-on-your-usb-drive

That question covers pretty much everything else, but I have yet to find a guide to getting postgresql portable. It doesn't seem easy if it's even possible.

So how do I get PostgreSQL portable? Is it even possible?

EDIT:

PostgreSQL Portable works. It's very slow on the usb-drive I have, but it works. I can't recommend doing constant development with it but for what I need it's great.

Perhaps if I pick up a full speed external drive I'll try out virtualization. Given the poor performance of just running the database off this drive, a full virtual OS running off of it would be unusable.

Answer 1

An alternate route would be to use something like VirtualBox and just install your development environment (database, whatever) on there.

Answer 2

Something like this?

Answer 3

I agree with virtualization solution, but maybe you can find useful this link from portable freeware collection, I have used this locally, not from usb though