APPCRASH error please help - Microsoft Internet Explorer 7

When program files or files within your computer's registry have become corrupted, this can cause the programs to unexpectedly crash. When a program crashes, you will likely get an Appcrash error. The error message will say "Windows Media Player (or whichever program has crashed) has stopped working" and then list rows of technical information regarding the cause of the crash. Unless you are a computer programmer, you may never fully understand what caused your program crash, but that doesn't mean that you can't fix it.
Delete any new programs that you have downloaded. Often, the cause of corruption in a computer system are bad downloads that bring harmful files onto your computer. If you started to get the Appcrash error on your system after downloading a new program or software from the Internet, it's highly likely you have downloaded a bad product. Use the "Add/Remove Programs" feature in your "Control Panel" to get rid of the program immediately.
Uninstall the program that is crashing. It is possible to fix the program's corrupted files while the program is still installed, but to make sure that you clear the program files completely, it is safest to completely uninstall it from the system.
Run a full scan of your computer. Your computer should already have antivirus software installed that can scan for corrupted files and either fix them or delete them from your system. If you do not have antivirus software on your computer, that could be a big part of the problem. Purchase and install antivirus software as soon as possible. These are designed tor from outside threats. Once you have the antivirus program installed, open it and click "Scan Computer." The antivirus scan will isolate bad files and you will be given the option to remove them from your system.

1. Reinstall the program that was crashing. Now that the corrupted files have all been removed, your program should run smoothly after reinstallation.
   
2. Check for program incompatibility. If, after a thorough scan and cleaning of your computer and reinstallation of your program, the Appcrash errors continue, the program you are trying to use may not be compatible with your program. For instance, there are some DVD softwares, such as Media Now, that do not work correctly with Windows Vista. These lists can be easily found online. If this is the case, you will have to purchase a software program that is compatible with your OS