Cheat Engine

[zm0d]

Use code-caves to write the register value to some allocated memory you can access. (What is a code-cave? http://www.codeproject.com/Articles/20240/The-Beginners-Guide-to-Codecaves)

To write a JMP to your code cave and insert a new MOV opcode to extract your registers value to allocated memory use array of bytes with the hexadecimal opcodes (e.g. NOP = 0x90, JMP = 0xE9, .....)

List of opcodes with hex: http://www.mathemainzel.info/files/x86asmref.html

Important WinApi-Methods:
OpenProcess only when not using an injected DLL.
VirtualAlloc(Ex) allocates memory for your code-cave.
WriteProcessMemory
ReadProcessMemory

[zm0d]

You can't do that unless you're using breakpoints.

To find this values stored in registers use base pointers and/or code injection, especially code caves as mentioned above.

[Rydian]