It's possible to play Xbox games through an emulator, but the only ones that exist are still very primitive, only playing a select few tested games at varying success. Some developers are only showcasing their progress thus far, with little to no access to the program itself to play/test running games. It's definitely not at a stage where you can use the emulator to casually play your games. But only time will tell!
Keep in mind, emulation of this system would also require a pretty decent PC with dedicated graphics to run smoothly. The requirements could be much higher depending on how accurate, and how optimized the emulator is.
If you must play these games, you will need to buy the actual system, and the games, or play some of the popular ones that run on the Xbox 360, furthermore, if you can pick up a modchip and install it (or get someone to), it's possible to run homebrew software and download (illegal of course, I'm sure people REALLY get steamed when you download their 8 year old xbox games that you can only find on eBay)/burn games to DVD-R, enabling quite a bit of content.
Anyway, if you're still interested in Xbox emulation use Google, or check out:
http://www.emulator-zone.com/doc.php/xbox/
http://www.caustik.com/cxbx/
http://shogun3d-cxbx.blogspot.com/
http://dxbx-emu.com/
No. Left 4 Dead Xbox Live Players can only play with other Xbox players. The same goes for PC.
what!?!?!?! Yes if a Xbox live member also has the PC game and a PC you will be able to play with a Xbox Live member, when he is using his PC You can not even get on X box live so how do you think you could play someone in a game on Xbox Live when you are on the PC. The games are not compatible even if you were on the same network. Could you put a Xbox 360 game in your computer and play it. No you could not. So why do you think that they could play each other. The Xbox 360 player also could not put the PC game in his Xbox 360 and play it because it is not compatible. The same applies to the other platforms
No, you can only play Hetaoni on a PC.
No they are two different platforms. A PC gamer will not be able to play with an xbox user and vice versa.
No you can not play xbox on line with PC.
No you can not play xbox on line with PC.
No you can not play xbox on line with PC.
Unfortunately, you do have to have an Xbox Live Gold Subscription. However, if you have a 360, you can share your Gold with your PC. Well, you need a gold subscription to play online if you want to play with people who play it on the 360 as well as the PC, but you can play online PC to PC with just a silver account which is free. At least that is what i have heard.
No you can't do this. Unless you are using a game specifically made by Microsoft to play from a PC with Xbox live users. (EG: shadowrun)
No the game is not cross-platform online, so people play the PC version together and people play the Xbox 360 version together, but a PC and Xbox 360 cannot play together on the same server.
No. There is no way to play PC games on a Xbox.
No you cannot you olny play with xbox live peope