In its long evolution, Windows has grown so complicated that it is harder to secure. Well these images make the point very well. Both images are a complete map of the system calls that occur when a web server serves up a single page of html with a single picture. The same page and picture.
This article was posted last year, but it gets the point across. When a web page is called from a Windows server, the amount of calls when compared to Linux is amazing. The pictures have to be seen to fully understood. Thanks Slashdot.
Source: ZD Net