用户安装了window live messenger 2009 出现了“无法定位程序输入点 _except_handler4_common 于动态链接库 msvcrt.dll 上”的错误，虽说不影响使用，但是也够烦人的，在google上找了好长时间才找到一个高手的解决方法（具体的产生的原因，解决的方法全是英文）；具体英文如下：
Volker:
Thank you so much for sharing this finding!!! After installing my
Creative Sound card that came with a pack of XP and Vista drivers ---
I had the :
The procedure entry point except handler4 common could not be located
in the dynamic link library msvcrt.dll
while using my Safari browser (when minimizing/maximizing windows) and
with Photoshop CS3 --- the programs ran okay --- but the error was a
great annoyance ----
After long hours of searching for solutions --- including XP repair
(which I avoided) --- I found your post!
I searched my drive and found of dwmapi.dll file in my system32
directory and renamed it (in case I needed to recover it.
Now the error is gone!!! In my case the error was called by the
dependency call in the dwmapi.dll .
I really, really, really appreciate you letting us know about this !!!
It's a bad situation when new software trys to accommodate more than
one operating system --- and the .dll dependencies conflict --- these
errors are truly a nasty situation!
Thanks again!!!
大概的意思：当运行“Safari browser”最大化和最小化，及运行photoshop cs3会出现这个问题；
这是由于sp3加载的驱动造成的；只需要将dwmapi.dll重新命名一下即可以解决；
按照这个思路，我们可以在system32中找到dwmapi.dll，他的标签居然表明来自Vista RTM，试着把“dwmapi.dll”重命名一下（注：改成任意文件名）；问题得到解决；