Dial Up Networking

I want to dial my home computer from my office. I have setup my home computer to allow caller access. The problem is that I am able to connect to the home PC BUT I could not open up any files or folders. I get an Unknown Error No. 2114 each time. Tonote that I have set my C drive for full sharing access. Each time I get the message that User is not accessible. Also I have given a name to my PC but when I click on find then computer from the remote location, it detect my home pc as user. Can anyone detail me how to proceed and to connect to my home PC from my office. Thanks.