Passive capture of packets: Most people want to test the WEP security on their own access point. In order to do this, you must capture in the order of 250,000 to 2,000,000 WEP data packets. This is a lot of packets.
With Windows, you can only capture packets passively. Meaning, you just sit back and wait for the packets to arrive. There is no way to speed things up like in the linux version. In the end, it could take you days, weeks, months or forever to capture sufficient packets to crack a WEP key. Technical Orientation: Dealing with wireless requires a fair amount of operating system, basic wireless and networking knowledge. If you don't have this or are not prepared to do your own research, then you will find the tools and techniques bewildering. Do not expect people on the forums or IRC to answer basic knowledge questions.
How To Use Aircrack
It is up to you to have these skills before starting out.If you truly want to explore the world of wireless then you need to make the commitment to learn and use linux plus the aircrack-ng suite linux version. An easy way to start is to utilize the Backtrack live distribution. This distribution has the aircrack-ng suite plus patched drivers already installed which jumpstarts your learning process. BackTrack information can be found.Installation and Usage.