Satellite finder using laptop and windows 7

[QBA]

Hi

I'm trying to learn enough about positioning my dish without having to buy an expensive hardware or paying an installer.

I have seem on youtube pretty cool sattelite finder softwares for smart phones, but I don't have one.

Can I use a laptop with windows 7 to run a satellite finder software and some inexpensive hardware to connect my dish to the laptop?

Can this be done? Is it difficult to do? What software should I use? What kind of hardware will let me connect a coax from the dish to the laptop?

Thanks a lot

Alex