After installing Vista Codec Package Win Vista,  I open  a folder with video and Rundll 32 has stopped working. How to correct it?
Windows host process (RundII32) has stopped working
A problem caused program to stop working correctly. Windows will close the program and notify you if a solution is available.
Vista Codec package installation problem
hello ms. yvonne, the best suggestion i can give to you rather than reinstalling your Operating system is just use the system restore system tool , by default it is always on. so im quite sure that you can go back to the recent time that you have not yet installed the codec. after you successfully fix this error just use the K-lite mega codec this supports Windows Vista and for me this is the best codec pack that i have ever seen. hoping that this will solve your problem. have a nice day