Why No One Plays on CodePlex

In response to the post Microsoft’s Open Source Software is Junk? and the article which triggered it, I would like to offer a few comments:

  1. CodePlex is not “Microsoft’s Open Source Software”. CodePlex is a sandbox where others can create open source software based on the Microsoft platform(s). 
  2. To say there are no interesting projects on CodePlex is something of an exaggeration. To say that it is “all junk” is just a sensationalistic headline trying to suck in readers. That said, much of the more interesting stuff actually comes from Microsoft’s Patterns and Practices group (such as the Enterprise Library), and so open source zealots do not recognize it. I would agree that there are few, if any, mature projects there which did not originate inside Microsoft.
  3. Do people not enjoy developing in .NET? Well, given the number of people using it, I would say many do enjoy developing using .NET (and no, they are not all Microsoft cronies, and they are not all forced to by evil, imperialistic employers). 
  4. While there are few mature .NET projects on CodePlex, that does NOT mean open source project based on .NET do not exist. Look around SourceForge. There are a lot of successful, valuable projects there based on the .NET platform.
  5. Look at the profile of the typical open source developer. Typically, they are coming from a very anti-Microsoft state of mind. Given that, they are not likely to develop their great idea on the .NET platform (even if it would be an ideal platform for it – they are making emotional and philosophical decisions, not technical ones). Even if they can bring themselves to use a Microsoft platform, they are definitely not going to host that project on a Microsoft-controlled site, where the evil empire could steal their radically brilliant work.
  6. Until relatively recently, there were no Microsoft-supplied free tools to develop on .NET (there have been a couple of open source tools, such as #develop, which is of course hosted on SourceForge). Open source developers are even less likely to pay Microsoft for the privilege of developing on .NET.
  7. Look at the life cycle of “successful” open source projects. Apache and Linux have been around for a very long time. Of course they are going to be much more mature than anything on the .NET side (though I am not sure many open source projects in any context will have the level of success these have had). FireFox hardly started from scratch, but from a large code-base of pre-existing code. A significant advantage. If Microsoft were to open source IE, you might see a big jump in open source browser development over top of it (though I doubt it, given point (4)).
  8. The existence of successful open source projects (again, leaving aside Apache and Linux) is largely a by product of having lots of open source projects. It is like ideas, the more you have of them, the more likely you might have a good one. There are not enough open source projects on .NET to have that “critical mass”, and given point (4), there may never be.

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