Run Windows Vista on a Mac! VirtualBox is a PC emulator for the Apple Mac and you can install Linux or Windows on its virtual hard disk drive. The OS runs within VirtualBox, but it works just like the real thing and it can be used as if it was really installed on the Mac.

Which do you prefer, Windows or OS X? It doesn't matter because you can get Lottery Cracker for the Mac and for Windows PCs. Take your pick, they are both great for analysing past lottery draws, picking lottery entries and managing syndicates.

If you use RealBasic to write your own programs, here's a useful calendar control that enables users to select a date from a pop-up calendar. It's a feature that VB programmers miss when they switch to RealBasic.

Sort a list of dates in RealBasic was written on a Mac, but RealBasic runs on Windows PCs and Linux too. It shows how to sort a listbox that contains a column of dates - something that the built in sort can't handle.

Most Mac programs don't come with uninstallers, so how do you get rid of them? Uninstall Mac OS X software properly tells you how to go about it.

A three part look at Windows Vista Firewall. If you want to make your system more secure when it is connected to the internet, this is essential reading.

Latest Vista tips: Get online help, make Help more readable, press F1 for Help. Latest XP tips: Disable System Restore for other users, Disable the File menu in Explorer, Use a Limited account. Latest Mac tips: Disable login items, Copy and paste files.

Acronis Drive Cleanser wipes all personal information off a hard disk before you throw out, recycle or sell your computer. It's essential because you don't want bank, credit card and other details falling into the wrong hands. Requirements: Any Windows PC. Buy it or Try it.

Acronis True Image 11 Home protects you from disaster. Copy of the hard disk drive, backup and restore music, video, photos, email and settings. Schedule automatic backups, boot even if Windows won't start. Requirements: Windows 2000, XP, Vista, 300Mb disk space. Buy it or Try it.