Hi. Let me first apologize for my bad PC skills..
I have a huge problem i have to resolve somehow and i really need your help. As my old PC died recently, i bought a new PC and 64 bit home premium windows 7. I have an old DOS accounting application (written in Clipper) and i use it for my work. That application won't run in 64 bit OS and that's how i found dosbox. I tried it and it seems to be working with my application, but i have couple of issues and questions;

1. I need codepage 852 for all the letters to work and i'm not sure if it's possible
2. I need to install dos2usb software in order to get my old LPT matrix printer to work, and i don't know how to do it in dosbox and if it's even possible
3. I need to have network support (communication) by NAT in order to have my application communicating with online server for data exchange
4. Since the dosbox creates some sort of virtual drive, is it possible to make backup of the data created by my application, in case it fails?
4. Is it possible to create a batch file that will run the application in full screen format and how?
I know i ask alot of questions and i apologize. Please help and advise.
thank you very much.