I just installed Linux in my system but I am not able to access its file system when I booted with windows. Please tell me the softwares or anyway available so that I can access the linux or unix system from windows installed on the same system.
I am assuming you are using an ext3 file system, which you can get drivers for in windows, but Windows drivers are usually available for other file systems too. The one linked is free and the first one that turned up in a Google search.
the fs-driver.org filesystem works quite well. I've been using it with Windows 2000 for several months now.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.