Here is some websites: www.objectcentral.com www.kde.org (for kde development, I like it very much, and they have an excellent IDE - kdevelop) www.xfree86.org (for x development) And a great book that covers all these things together: C++ programming, Memory management, shared libraries, X Window development, etc GNU C++ FOR LINUX - Tom Swan There's much more, but unfortunatelly I don't remeber. :( []s

Wise Installer has this as a "addon" to your program (basically, a pre-crafted tiny install that downloads a file), and I'm pretty sure Install Shield has it too. You can do this yourself - it's not that hard, really. Conceptionally, you ftp a static file name at a static location (or http it down, your choice) and check the values in it, and perhaps have a reference to where the update is at. You can do this usin the wininet functions. or CHttpConnection/CFtpConnection in MFC.