Found this in Google for your first problem/pop-up;
Often after cleaning out serious viruses and spyware, some windows files are removed also (because they were infected).
What I would do is insert your operating system cd and boot to that disk. Now do a repair of your system. In Vista it's much easier than in XP.
Second issue was also an easy find in Google;
GoogleCrashHandler.exe runs continuously on your computer if you’ve selected to send anonymous usage statistics and crash reports to Google for certain Google software, like Google Chrome. It helps send crash details to Google when your Google software unexpectedly shuts down. We use this data to help determine how to prevent these errors from happening in the future.
Looks like to stop it, you would just remove it from the PC.