Hello all..Today I would like to share one of my digital guitar rig tips
Software Used: Amplitube & Guitar Rig 4 (Google them yourself ya!)
Oh ya, If you do not support piracy, then you need to pay for the real thing, or just stick with the free demo (which expires after some time).
As for me, well, I have the full installer of both software - used on a learning basis (haha..thats just an excuse).
Well, that is just about the software. Generally, when you want to use this kind software, you need something to connect your guitar to the PC. You need either; sound card with multiple inputs(1/4" input, etc.) OR you can use a USB device that can do the trick. The USB device looks like this:

All PCs and laptops come with a 'Line In' 3.5mm jack (There are all 3 together - mic input, speaker output and Line in input). Line In input allows the PC to take any sound input and play it through the speakers. Well, this is where the RM5 is needed. Get yourself a 1/4" jack to 3.5mm jack adapter that looks like this :

Plug your guitar to your PC through this. When you play the guitar, you should hear it through the PC's speakers. (If it doesnt, well, don't panic. Try several setting in the PC's audio manager. If no sound also, again, dont panic.We'll save that for later.)
So how the hell could you use this software? This is when another free thing comes in. You need a special software that can re-route the Line-In jack, modulating it as if you are using a sound card. The software is known widely in digital audio world as 'ASIO'. The software is actually not free, but there are some bad-ass folks developed a free version of it. Get it from here:
http://www.asio4all.com
source: kirovdust, Lowyat.net