Function at 0x403b78
Capabilities:
Check if file exists
Get file attributes

Disassembly:
mov eax, dword [0x44ba50]
sub esp, 0x14
and eax, 0x20
push ebx
push ebp
push esi
mov esi, dword [0x44ba48]
push edi
mov dword [0x44bac0], eax
call fcn.00403df4
mov ebp, 0x476000
push ebp
call fcn.00405d19
xor ebx, ebx
test eax, eax
jne 0x403c2c
mov ecx, dword [esi + 0x48]
cmp ecx, ebx
je 0x403c2c
mov edx, dword [esi + 0x4c]
mov eax, dword [0x44ba78]
mov edi, 0x43b9c0
add edx, eax
push edi
add ecx, eax
push edx
push ecx
push dword [esi + 0x44]
call fcn.0040602d
mov al, byte [0x43b9c0]
cmp al, bl
je 0x403c2c
cmp al, 0x22
jne 0x403beb
mov edi, 0x43b9c1
push 0x22
push edi
call fcn.00405c62
mov byte [eax], bl
push edi
call fcn.0040614b
lea eax, [eax + edi - 4]
cmp eax, edi
jbe 0x403c1f
push str..exe
push eax
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
jne 0x403c1f
push edi
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x403c19
test al, 0x10
jne 0x403c1f
push edi
call fcn.00405c7e
push edi
call fcn.00405c36
push eax
push ebp
call fcn.0040613a
push ebp
call fcn.00405d19
test eax, eax
jne 0x403c42
push dword [esi + 0x118]
push ebp
call fcn.00406158
test byte [0x44ba50], 0x10
push 1
pop ebp
je 0x403c61
cmp dword [0x44ba54], ebx
jne 0x403c61
call fcn.00403b56
mov dword [0x43b9a0], ebp
push 0x8040
push ebx
push ebx
push ebp
push 0x67
push dword [0x44ba40]
call dword [sym.imp.USER32.dll_LoadImageA]
mov dword [0x447a28], eax
cmp dword [esi + 0x50], 0xffffffff
mov edi, 0x4479e0
je 0x403d14
mov ecx, dword [0x44ba40]
mov dword [0x4479f4], eax
lea eax, [esp + 0x10]
push edi
mov dword [esp + 0x14], 0x624e5f
mov dword [0x4479e4], 0x401000
mov dword [0x4479f0], ecx
mov dword [0x447a04], eax
call dword [sym.imp.USER32.dll_RegisterClassA]
test ax, ax
je 0x403dea
lea eax, [esp + 0x14]
push ebx
push eax
push ebx
push 0x30
call dword [sym.imp.USER32.dll_SystemParametersInfoA]
push ebx
push dword [0x44ba40]
mov eax, dword [esp + 0x28]
sub eax, dword [esp + 0x20]
push ebx
push ebx
push eax
mov eax, dword [esp + 0x30]
sub eax, dword [esp + 0x28]
push eax
lea eax, [esp + 0x28]
push dword [esp + 0x30]
push dword [esp + 0x30]
push 0x80000000
push ebx
push eax
push 0x80
call dword [sym.imp.USER32.dll_CreateWindowExA]
mov dword [0x4353ec], eax
push ebx
call fcn.00401440
test eax, eax
je 0x403d26
push 2
pop eax
jmp 0x403dec
call fcn.00403df4
cmp dword [0x44bae0], ebx
jne 0x403dc2
push 5
push dword [0x4353ec]
call dword [sym.imp.USER32.dll_ShowWindow]
mov esi, dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov ebp, str.RichEd20.dll
push ebp
call esi
test eax, eax
jne 0x403d63
push ebp
mov word [0x40a846], 0x3233
call esi
mov ebp, dword [sym.imp.USER32.dll_GetClassInfoA]
mov esi, 0x40a834
push edi
push esi
push ebx
call ebp
test eax, eax
jne 0x403d96
push edi
push esi
push ebx
mov byte [0x40a83c], bl
call ebp
push edi
mov dword [0x447a04], esi
mov byte [0x40a83c], 0x32
call dword [sym.imp.USER32.dll_RegisterClassA]
mov eax, dword [0x447a20]
push ebx
add eax, 0x69
push 0x403eeb
movzx eax, ax
push ebx
push eax
push dword [0x44ba40]
call dword [sym.imp.USER32.dll_DialogBoxParamA]
push 5
mov esi, eax
call fcn.00401440
mov eax, esi
jmp 0x403dec
push ebx
call fcn.00405504
test eax, eax
je 0x403de4
cmp dword [0x447a0c], ebx
jne 0x403d1e
push 2
call fcn.00401440
jmp 0x403d1e
push ebp
call fcn.00401440
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x14
ret