I've been working in a project using project manager in VFoxPro 5.0, this project and all the files involved are stored in my machine, but when a parter try to access the project at the same time than me he receives an error message:

Access denied to file

The VFoxPro version we are using is the Professional one 5.0, i eared something about an Enterprise version. Is VFoxPro Professional 5.0 unable to work in a group?