将程序用OD加载,然后CTRL+N,在这一行下断点:#3092_CWnd::GetDlgItem.
之后按F9,直到出现窗口,这时可以看见模块处于MFC中,(只要是模块处于MFC中就一路F8,不用细看代码),当模块第三次进入MyFirstCrackMe时就可以看见如下代码,之后的就不用说了吧

(本人很菜很菜的鸟.......高人多多指教)
调试信息如下:
004015A0 . 56 push esi
004015A1 . 57 push edi
004015A2 . 8BF1 mov esi, ecx
004015A4 . 6A 01 push 1
004015A6 . E8 CB020000 call <jmp.&MFC42.#6334_CWnd::UpdateData>
004015AB . 8B46 60 mov eax, dword ptr [esi+60]
004015AE . 8B3D BC214000 mov edi, dword ptr [<&MSVCRT._mbscmp>] ; msvcrt._mbscmp
004015B4 . 68 3C314000 push 0040313C ; /s2 = ""
004015B9 . 50 push eax ; |s1
004015BA . FFD7 call edi ; \_mbscmp
004015BC . 83C4 08 add esp, 8
004015BF . 85C0 test eax, eax
004015C1 . 74 61 je short 00401624
004015C3 . 8B46 64 mov eax, dword ptr [esi+64]
004015C6 . 68 3C314000 push 0040313C
004015CB . 50 push eax
004015CC . FFD7 call edi
004015CE . 83C4 08 add esp, 8
004015D1 . 85C0 test eax, eax
004015D3 . 74 4F je short 00401624
004015D5 . 8B46 60 mov eax, dword ptr [esi+60]
004015D8 . 68 30304000 push 00403030 ; ASCII "jping"
004015DD . 50 push eax
004015DE . FFD7 call edi
004015E0 . 83C4 08 add esp, 8
004015E3 . 85C0 test eax, eax
004015E5 . 75 27 jnz short 0040160E
004015E7 . 8B46 64 mov eax, dword ptr [esi+64]
004015EA . 68 20304000 push 00403020 ; ASCII "FirstCrackMe"
004015EF . 50 push eax
004015F0 . FFD7 call edi
004015F2 . 83C4 08 add esp, 8
004015F5 . 85C0 test eax, eax
004015F7 . 75 15 jnz short 0040160E
004015F9 . 50 push eax
004015FA . 68 64304000 push 00403064
004015FF . 68 58304000 push 00403058
00401604 . 8BCE mov ecx, esi
00401606 . E8 65020000 call <jmp.&MFC42.#4224_CWnd::MessageBoxA>
0040160B . 5F pop edi
0040160C . 5E pop esi
0040160D . C3 retn
0040160E > 6A 00 push 0
00401610 . 68 64304000 push 00403064
00401615 . 68 48304000 push 00403048
0040161A . 8BCE mov ecx, esi
0040161C . E8 4F020000 call <jmp.&MFC42.#4224_CWnd::MessageBoxA>
00401621 . 5F pop edi
00401622 . 5E pop esi
00401623 . C3 retn
00401624 > 6A 00 push 0
00401626 . 68 64304000 push 00403064
0040162B . 68 38304000 push 00403038
00401630 . 8BCE mov ecx, esi
00401632 . E8 39020000 call <jmp.&MFC42.#4224_CWnd::MessageBoxA>
00401637 . 5F pop edi
00401638 . 5E pop esi
00401639 . C3 retn