How to free flash disk space using few applications, like: use only Calc and Impress, and delete others.

How to free flash disk space using few applications, like: use only Calc and Impress, and delete others.

I'd like to know how to do that, or, at least, which archives I have to delete, in OpenOfficePortable folder.

I do prefer AbiWord to use like WordProcessor, and I do not need Base (databases), Math, and Draw. So, how can I delete OpenOffice Writer, Base, Math and Draw from my OpenOfficePortable (to free space)? I'd like to use only Calc and Impress in my flash usb drive.

Thanks.