exactly, i have finished an application in vb, but it is too slow with the amount of data it is processing. i have to make it in windows as the majority of users are on windows; in a perfect world windows would be open source and free or linux would be used by everyone. i was hoping that 64 bit compilers and systems would create a further performance boost, but i would need a 64 bit compiler wouldn't i? perhaps there are compilers that compile to 64 and 32bit applications?