opening a file from internet explorer

hi all, i have a problem: i am opening and reading and writing a file through php page. $fp = fopen("\bdoi_change\andar.html", "w"); fwrite($fp, "<html><head><title>diksha</title></head><body><h1>i solved problem!</body></html>"); but when i try to open "\bdoi_change\andar.html" through internet explorer, i am getting "page cannot be displayed". please help me out. diksha.