Windows XP Access Violation Codes

Causes
Access violations occur when a program tries to use a portion of memory reserved for the operating system. At that point, the program is denied access to the memory and crashes, displaying one or more error codes.
Explanation
The error codes indicate the portion of memory the program tried to access, usually 0x00000000, and the memory area where the program is loaded.
Considerations
If an access violation code continuously appears pointing to a memory address which is not in a system reserved area, it may indicate a problem with your random access memory (RAM). Run a diagnostics program such as Memtest86 to detect if your RAM is working properly.