Function at 0x43ed30
Capabilities:
Check if file exists
Get file attributes
Set current directory

Disassembly:
mov eax, 0x10d68
call fcn.00490e40
cmp dword [0x4aa3bc], 4
mov eax, dword [0x4aa168]
push ebx
push ebp
mov ebp, dword [esp + 0x10d7c]
push esi
push edi
mov edi, ecx
mov esi, edx
mov dword [esp + 0x14], eax
jl 0x43ed80
mov ecx, dword [esp + 0x10d7c]
push 0x498839
push 0
push str.The_maximum_number_of_File_Dialogs_has_been_reached.
call fcn.0042d3a0
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10d68
ret 0xc
xor ebx, ebx
push 0xfffe
lea ecx, [esp + 0xd7d]
push ebx
push ecx
mov byte [esp + 0xd84], bl
call fcn.0048db40
add esp, 0xc
cmp esi, ebx
je 0x43ee97
cmp byte [esi], bl
je 0x43ee97
push 0x103
lea edx, [esp + 0x74]
push esi
push edx
call fcn.00487610
add esp, 0xc
push 3
lea eax, [esp + 0x74]
push 0x49de1c
push eax
mov byte [esp + 0x17f], bl
call fcn.004867a6
add esp, 0xc
test eax, eax
sete al
mov byte [esp + 0x12], al
cmp al, bl
je 0x43ee23
lea ecx, [esp + 0x70]
push 0x7d
push ecx
call fcn.00485661
add esp, 8
cmp eax, ebx
je 0x43ee9b
cmp byte [eax + 1], bl
je 0x43ee9b
lea eax, [esp + 0x70]
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
cmp cl, bl
jne 0x43ee11
sub eax, edx
cmp byte [esp + eax + 0x6f], 0x5c
jne 0x43ee37
jmp 0x43ee9b
lea edx, [esp + 0x70]
push edx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
je 0x43ee37
test al, 0x10
jne 0x43ee9b
lea eax, [esp + 0x70]
push 0x5c
push eax
call fcn.0048686a
mov esi, eax
add esp, 8
cmp esi, ebx
je 0x43ee70
push 0xfffe
lea ecx, [esi + 1]
push ecx
lea edx, [esp + 0xd80]
push edx
call fcn.00487610
mov byte [esp + 0x10d82], bl
add esp, 0xc
mov byte [esi], bl
jmp 0x43ee9b
cmp byte [esp + 0x12], bl
jne 0x43ee9b
push 0xfffe
lea eax, [esp + 0x74]
push eax
lea ecx, [esp + 0xd80]
push ecx
call fcn.00487610
add esp, 0xc
mov byte [esp + 0x10d76], bl
mov byte [esp + 0x70], bl
cmp edi, ebx
je 0x43eec2
cmp byte [edi], bl
je 0x43eec2
push 0x3ff
lea edx, [esp + 0x97c]
push edi
push edx
call fcn.00487610
add esp, 0xc
mov byte [esp + 0xd77], bl
jmp 0x43eee1
mov eax, dword [0x4ac874]
push eax
push str.Select_File____s
mov esi, 0x400
lea edi, [esp + 0x980]
call fcn.00471830
add esp, 8
push 0x3ff
lea ecx, [esp + 0x57d]
push ebx
push ecx
mov byte [esp + 0x584], bl
call fcn.0048db40
add esp, 0xc
push 0x3ff
lea edx, [esp + 0x17d]
push ebx
push edx
mov byte [esp + 0x184], bl
call fcn.0048db40
add esp, 0xc
cmp byte [ebp], bl
je 0x43ef75
push 0x28
push ebp
call fcn.00485661
add esp, 8
push 0x3ff
cmp eax, ebx
je 0x43efb0
inc eax
push eax
lea eax, [esp + 0x180]
push eax
call fcn.00487610
add esp, 0xc
lea ecx, [esp + 0x178]
push 0x29
push ecx
mov byte [esp + 0x57f], bl
call fcn.0048686a
add esp, 8
cmp eax, ebx
je 0x43ef67
mov byte [eax], bl
jmp 0x43efc8
mov byte [esp + 0x178], bl
mov byte [esp + 0x578], bl
push 0x54
lea edx, [esp + 0x20]
push ebx
push edx
call fcn.0048db40
mov ebx, dword [0x4a6920]
add esp, 0xc
add ebx, 0x4c
mov dword [esp + 0x18], 0x58
call fcn.0045a0a0
test eax, eax
je 0x43f01d
mov eax, dword [0x4a6920]
mov ecx, dword [eax + 0x4c]
mov edx, dword [ecx + 4]
mov dword [esp + 0x1c], edx
jmp 0x43f025
lea edx, [esp + 0x17c]
push ebp
push edx
call fcn.00487610
add esp, 0xc
mov byte [esp + 0x577], bl
cmp byte [esp + 0x178], bl
je 0x43ef6e
push ebx
push 0xffffffffffffffff
push 1
push 0x498839
lea eax, [esp + 0x188]
push 0x49c7a0
push eax
xor eax, eax
or ecx, 0xffffffff
call fcn.00471ff0
push ebx
push ebx
push ebx
lea ecx, [esp + 0x19c]
push ecx
push ebx
push ebp
push str._s_c_s_cAll_Files__.__c._c
mov esi, 0x400
lea edi, [esp + 0x5ac]
call fcn.00471830
add esp, 0x34
jmp 0x43ef75
mov dword [esp + 0x1c], 0
cmp byte [esp + 0x578], 0
lea eax, [esp + 0x978]
mov dword [esp + 0x48], eax
je 0x43f047
lea ecx, [esp + 0x578]
mov dword [esp + 0x24], ecx
jmp 0x43f04f
mov dword [esp + 0x24], str.All_Files__._
movsx eax, byte [esp + 0x70]
mov esi, dword [esp + 0x10d80]
mov bl, byte [esi]
neg eax
sbb eax, eax
lea ecx, [esp + 0x70]
and eax, ecx
mov dword [esp + 0x44], eax
movzx eax, bl
lea edx, [esp + 0xd78]
mov dword [esp + 0x34], edx
mov dword [esp + 0x38], 0xfffe
mov byte [esp + 0x12], 0
mov byte [esp + 0x13], 0
test eax, 0xffffff80
jne 0x43f0a4
push 2
push eax
call fcn.00485bae
add esp, 8
test eax, eax
je 0x43f0a4
and bl, 0xdf
cmp bl, 0x4d
je 0x43f0b5
cmp bl, 0x53
jne 0x43f0bb
mov byte [esp + 0x12], 1
jmp 0x43f0ba
mov byte [esp + 0x13], 1
inc esi
mov eax, esi
call fcn.0040cdf0
test al, al
je 0x43f0d5
push 0x10
push 0
push esi
call fcn.00485ff4
add esp, 0xc
jmp 0x43f0de
push esi
call fcn.00485bf6
add esp, 4
mov dword [esp + 0x4c], 0x80004
test al, 0x20
je 0x43f0f2
mov dword [esp + 0x4c], 0x180004
test al, 0x10
je 0x43f0fb
or dword [esp + 0x4c], 2
test al, 8
je 0x43f107
or dword [esp + 0x4c], 0x2000
cmp byte [esp + 0x13], 0
mov ebp, 0x200
jne 0x43f117
test al, 4
je 0x43f11b
or dword [esp + 0x4c], ebp
test al, 2
je 0x43f127
or dword [esp + 0x4c], 0x800
test al, 1
je 0x43f133
or dword [esp + 0x4c], 0x1000
call fcn.00476da0
mov edx, dword [0x4aa220]
push 0
push 0x403
push 0x44
push edx
mov bl, al
call dword [sym.imp.USER32.dll_PostMessageA]
mov edi, 1
add dword [0x4aa3bc], edi
cmp byte [esp + 0x12], 0
jne 0x43f17e
mov eax, dword [esp + 0x4c]
test al, 2
je 0x43f171
test eax, 0x2000
je 0x43f17e
lea eax, [esp + 0x18]
push eax
call dword [sym.imp.COMDLG32.dll_GetOpenFileNameA]
jmp 0x43f189
lea ecx, [esp + 0x18]
push ecx
call dword [sym.imp.COMDLG32.dll_GetSaveFileNameA]
sub dword [0x4aa3bc], edi
test bl, bl
mov esi, eax
mov eax, dword [0x4a6920]
sete dl
mov byte [eax + 0xca], bl
mov byte [eax + 0xc8], dl
cmp byte [0x4aaa20], 0
je 0x43f1bb
push 0x4aaa20
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
test esi, esi
jne 0x43f222
mov ecx, dword [esp + 0x14]
call fcn.00412b70
cmp eax, edi
je 0x43f1db
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10d68
ret 0xc
call dword [sym.imp.COMDLG32.dll_CommDlgExtendedError]
test eax, eax
je 0x43f1ff
mov eax, dword [esp + 0x10d7c]
push eax
call fcn.0042f920
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10d68
ret 0xc
mov ecx, dword [0x4aaa1c]
push edi
push 0
push 0xffffffffffffffff
push 0x499ee8
push ecx
call fcn.00474550
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10d68
ret 0xc
mov edx, dword [0x4aaa1c]
push edi
push 0
push 0xffffffffffffffff
push 0x498884
push edx
call fcn.00474550
test dword [esp + 0x4c], ebp
je 0x43f2f0
cmp byte [esp + 0x13], 0
lea eax, [esp + 0xd78]
je 0x43f2d7
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x43f257
sub eax, edx
cmp byte [esp + eax + 0xd79], cl
lea eax, [esp + 0xd78]
jne 0x43f2c0
push 0x5c
push eax
call fcn.0048686a
mov esi, eax
add esp, 8
test esi, esi
je 0x43f2f0
mov ecx, esi
lea edx, [esp + 0xd78]
sub ecx, edx
mov byte [esi], 0xa
cmp ecx, 2
jne 0x43f2f0
cmp byte [esi - 1], 0x3a
jne 0x43f2f0
lea edx, [eax + 1]
lea ecx, [ecx]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x43f2a0
sub eax, edx
inc eax
push eax
lea eax, [esi + 1]
push esi
push eax
call fcn.00485250
add esp, 0xc
mov byte [esi], 0x5c
jmp 0x43f2f0
cmp byte [eax], 0
je 0x43f2cc
add eax, edi
cmp byte [eax], 0
jne 0x43f2c5
cmp byte [eax + 1], 0
je 0x43f2f0
mov byte [eax], 0xa
jmp 0x43f2c0
cmp byte [eax], 0
je 0x43f2e7
lea esp, [esp]
add eax, edi
cmp byte [eax], 0
jne 0x43f2e0
cmp byte [eax + 1], 0
mov byte [eax], 0xa
jne 0x43f2d7
mov edx, dword [esp + 0x14]
push edi
push 0
push 0xffffffffffffffff
lea ecx, [esp + 0xd84]
push ecx
push edx
call fcn.00474550
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10d68
ret 0xc