>Does someone use a communication library with vfp to send files through modems from one location to a another.
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There are a bunch of ways to approach this. if you want to write your own comms, you can go as low-level as you'd like - the MSCOMM32 ActiveX control gives you low-level access to the comm port, but you need to build things up from there.

A number of people use the CommTools package, which can be purchased from halloGram. It has some concepts of dialing and file transfer protocols, making an easier task of the process.

IMO, the best way to approach this is to remove VFP from any involvement with communications entirely. You can use any of several Wide-Area Networking services such as RAS to establish a dial-up connection between two machines, and once the connection is established, it's simply a mater of copying files to and from systems. The same approach can use the services of a VPN (Virtual Private Networking; a way of establishing a secured connection between multiple systems using the Internet as a transport layer) - you simply set up the systems to make the necessary connection on-demand, just like you do with any other dial-up connection, and use the high-level services of the established connection to copy files, etc. You can, if your volume of data is small, even connect to databases across such a connection. let WIndows handle the management of the connection, and let VFP do what it does best - perform file operations.

Rick Strahl's book Internet Applications with Visual FoxPro 6.0 deals with this problem in considerable detail, showing a wide range of solutions that divorce VFP from the responsibility of making the connection and managing the acurate and secure transfer of data across a dial-up or other WAN connection. You can order it from the publisher, www.hentzenwerke.com or from Rick's Web site, www.west-wind.com, which also has some neat whitepapers on using the web and VFP.