SOFTWARE DEVELOPER Microsoft has seen the market share of its IIS webserver drop back to 1997 levels.
Microsoft's IIS webserver is the second most widely used webserver daemon after Apache. While it never occupied the top spot, at one point in 2007 it was starting to get close to Apache's hugely popular webserver software. However since 2008, its market share plummeted and while it still manages to hold onto second place, there's the best part of 50 percentage points difference between Apache and Microsoft's IIS and the Vole's IIS apparently is back to the level of market share that it saw in 1997.
Apache's HTTPD webserver is popular for two reasons. It runs on just about every operating system out there, and it can be implemented in other products such as Oracle's own application server products. Microsoft's IIS, on the other hand, is closed source and runs only on Windows, so it's no surprise that it lags behind Apache's more robust and flexible sofware offering.
Although in absolute terms the number of websites running on Microsoft's IIS is greater than it was in 1997, the fact that its overall market share has dropped will not be very pleasing for Microsoft.
Web server deployment is fairly easy to register, as many websites present a tag that shows off the server type. Although it is by no means conclusive, this falling Microsoft IIS market share might be construed as a more general decline in Microsoft's server operating system market share.
The only positive - if you can call it that - for Microsoft is that the figures don't reveal whether IIS is the problem or the Windows operating system. Given that the Vole bundles IIS for free in Windows, Microsoft will be hoping it is the former, because customers turning away from Windows Server in droves might be a far more dire sign. µ