Could someone please tell me how I can get a vb program on a CD-ROM to call files on the CD-ROM without installing the program to the C Drive. I am at the stage where I can autorun the program, but when I ask the program to open a file on the CD-ROM it may not be successful as not everyone has their CD-ROM drive labelled as D Drive. How can it recognise the CD-ROM drive letter and then refer to files on it? I have been pulling my hair out on this one!