virtualbox.org

When i try to install Virtual box in XP it says that it has 'not passed the security of Windows and can make XP unstable now or create problems in future'

Should I heed this warning?

I did use it once before and it did create problems with my XP.

any solutions?

That messages comes because the drivers that it supplies for HIF and USB are not digitally signed by MS. You can ignore these warnings and contiue the installation.