FTP Files Using the Internet Transfer Control

Using the Microsoft Internet Transfer Control you can easily FTP files between a client and host computer. This program contains a class module that exposes methods allowing you to send and receive one or more files to or from a host computer using the File Transfer Protocol.

FTP files using the Internet Transfer Control
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Discussion

The heart of this project is a class module that consists of several methods to Get and Put files between a local and remote computer via FTP. The FTP operations themselves are handled by the Internet Transfer Control.

My class module exposes an FTPInit method which is used to initialize the FTP session by setting your user ID, password, proxy information, remote port (see table), timeout period,.... FTPInit must be the first method called. Conversely, FTPClose terminates your FTP session and should be the last method called.

Port

Service

21

File Transfer Protocol (FTP)

25

Simple Mail Transfer Protocol (SMTP)

79

Finger

80

Hypertext Transfer Protocol (HTTP)

443

Secure Hypertext Transfer Protocol (HTTPS)

666

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In between are FTPGet and FTPPut methods which, as their names imply, get a file from a remote server and send a file to the server. Basically, they invoke the control's Execute method passing it the Get or Put command and the information about the file to transfer.

Also included are FTPGetAll and FTPPutAll methods. FTPGetAll will retrieve all files from the host that match a particular condition. For example, all files ending with ".txt". FTPPutAll does the opposite. It looks through a folder on your local machine for all files matching a given string and sends them to the host.

The class module is a standalone module that you can include in your project. Since the Internet Transfer Control must reside on a form, you must include frmFTP as well. Form Main shows how to instantiate and call the class module.

Instructions

You need FTP access to a remote computer. After that, the program is self explanatory. It assumes C:\Temp for a local folder and TheScarms.txt for a local file. You can change this information in the load event of form Main.


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