Start Programs - Failed To Initialize Properly (0xc000012d)

I usually don't turn my computer off, but let it hibernate. This never caused problems, but lately, everytime after about a week, Windows became unstable. Part of the text disappears from the screen, like some text from web pages and the text 'start' on the start menu. When I try to start programs, I get various error messages, like 'The application failed to initialize properly (0xc000012d)'. When I close some programs, the system seems to work again for a couple of minutes, but then the problems start again.

(It might also occur when i do not use hibernate, but keep my computer on for a couple of days, but I didnt try this.) It looks like Windows is running out of memory or running out of some other resource? How can i check which resource is exactly running out? Physical memory is 458,224 kB, of which at the time of the problem about 84MB free and 114 MB system cache - not very different from the values during normal use.Kernel memory during time of the problem is total 188 MB - a lot higher than during normal use. However, I don't know what kernel memory is, how to reduce it, and whether it might cause this kind of problems. I am using Windows XP Home SP3. Processor is AMD Sempron 3000+.