Function at 0x440580
Capabilities:
Check if file exists
Get file attributes
Set current directory

Disassembly:
mov eax, 0x21a6c
call fcn.00498b00
cmp dword [0x4c7640], 4
mov eax, dword [esp + 0x21a78]
push ebx
push ebp
mov ebp, dword [esp + 0x21a84]
push esi
push edi
mov edi, ecx
mov ecx, dword [0x4c73f0]
mov dword [esp + 0x14], ecx
jl 0x4405d6
mov ecx, dword [esp + 0x21a80]
push 0x4a0850
push 0
push str.The_maximum_number_of_File_Dialogs_has_been_reached.
call fcn.0042e0b0
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10
xor edx, edx
mov word [esp + 0x1a78], dx
test eax, eax
je 0x4406f4
cmp word [eax], dx
je 0x4406f4
push 0x103
push eax
lea eax, [esp + 0x78]
push eax
call fcn.00490004
add esp, 0xc
push 3
lea edx, [esp + 0x74]
xor ecx, ecx
push 0x4aa674
push edx
mov word [esp + 0x282], cx
call fcn.0048eea4
add esp, 0xc
test eax, eax
sete bl
test bl, bl
je 0x440670
lea eax, [esp + 0x70]
push 0x7d
push eax
call fcn.0048e0e1
add esp, 8
test eax, eax
je 0x4406fb
cmp word [eax + 2], 0
je 0x4406fb
lea eax, [esp + 0x70]
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
test cx, cx
jne 0x440654
sub eax, edx
sar eax, 1
cmp word [esp + eax*2 + 0x6e], 0x5c
jne 0x440684
jmp 0x4406fb
lea ecx, [esp + 0x70]
push ecx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
je 0x440684
test al, 0x10
jne 0x4406fb
lea edx, [esp + 0x70]
push 0x5c
push edx
call fcn.0048eedd
mov esi, eax
add esp, 8
test esi, esi
je 0x4406c3
push 0xfffe
lea eax, [esi + 2]
push eax
lea ecx, [esp + 0x1a80]
push ecx
call fcn.00490004
xor edx, edx
add esp, 0xc
xor eax, eax
mov word [esp + 0x21a74], dx
mov word [esi], ax
jmp 0x4406fb
test bl, bl
jne 0x4406fb
push 0xfffe
lea ecx, [esp + 0x74]
push ecx
lea edx, [esp + 0x1a80]
push edx
call fcn.00490004
xor eax, eax
add esp, 0xc
xor ecx, ecx
mov word [esp + 0x21a74], ax
mov word [esp + 0x70], cx
jmp 0x4406fb
xor edx, edx
mov word [esp + 0x70], dx
test edi, edi
je 0x440727
cmp word [edi], 0
je 0x440727
push 0x3ff
lea eax, [esp + 0x127c]
push edi
push eax
call fcn.00490004
add esp, 0xc
xor ecx, ecx
mov word [esp + 0x1a76], cx
jmp 0x440747
mov edx, dword [0x4ca0ec]
push edx
push str.Select_File____s
mov esi, 0x400
lea edi, [esp + 0x1280]
call fcn.00473e90
add esp, 8
xor eax, eax
xor ecx, ecx
mov word [esp + 0xa78], ax
mov word [esp + 0x278], cx
cmp word [ebp], ax
je 0x4407c8
push 0x28
push ebp
call fcn.0048e0e1
add esp, 8
push 0x3ff
test eax, eax
je 0x44080c
add eax, 2
push eax
lea edx, [esp + 0x280]
push edx
call fcn.00490004
add esp, 0xc
lea ecx, [esp + 0x278]
xor eax, eax
push 0x29
push ecx
mov word [esp + 0xa7e], ax
call fcn.0048eedd
add esp, 8
test eax, eax
je 0x4407b4
xor edx, edx
mov word [eax], dx
jmp 0x440827
xor eax, eax
mov word [esp + 0x278], ax
xor edx, edx
mov word [esp + 0xa78], dx
push 0x54
lea eax, [esp + 0x20]
push 0
push eax
call fcn.004961e0
mov ebx, dword [0x4c39ac]
add esp, 0xc
add ebx, 0x4c
mov dword [esp + 0x18], 0x58
call fcn.0045b560
test eax, eax
je 0x440885
mov ecx, dword [0x4c39ac]
mov edx, dword [ecx + 0x4c]
mov eax, dword [edx + 4]
mov dword [esp + 0x1c], eax
jmp 0x44088d
lea ecx, [esp + 0x27c]
push ebp
push ecx
call fcn.00490004
add esp, 0xc
xor edx, edx
mov word [esp + 0xa76], dx
cmp word [esp + 0x278], 0
je 0x4407be
push 0
push 0xffffffffffffffff
push 0xffffffffffffffff
push 1
push 0x4a0850
lea eax, [esp + 0x28c]
push 0x4a80cc
push eax
xor eax, eax
call fcn.00474680
add esp, 0x1c
push 0
push 0
push 0
lea ecx, [esp + 0x284]
push ecx
push 0
push ebp
push str._s_c_s_cAll_Files__.__c._c
mov esi, 0x400
lea edi, [esp + 0xa94]
call fcn.00473e90
add esp, 0x1c
jmp 0x4407c8
mov dword [esp + 0x1c], 0
cmp word [esp + 0xa78], 0
lea ecx, [esp + 0x1278]
mov dword [esp + 0x48], ecx
je 0x4408b0
lea edx, [esp + 0xa78]
mov dword [esp + 0x24], edx
jmp 0x4408b8
mov dword [esp + 0x24], str.All_Files__._
movzx ecx, word [esp + 0x70]
mov edi, dword [esp + 0x21a84]
movzx esi, word [edi]
neg ecx
sbb ecx, ecx
lea edx, [esp + 0x70]
and ecx, edx
lea eax, [esp + 0x1a78]
mov dword [esp + 0x34], eax
mov dword [esp + 0x38], 0xfffe
mov dword [esp + 0x44], ecx
mov byte [esp + 0x13], 0
mov byte [esp + 0x12], 0
test esi, 0xffffff80
jne 0x44090c
push 2
push esi
call fcn.0048e55e
add esp, 8
test eax, eax
je 0x44090c
and esi, 0xffffffdf
movzx eax, si
cmp eax, 0x4d
je 0x440920
cmp eax, 0x53
jne 0x440928
mov byte [esp + 0x13], 1
jmp 0x440925
mov byte [esp + 0x12], 1
add edi, 2
mov eax, edi
call fcn.0040d260
test al, al
je 0x440942
push 0x10
push 0
push edi
call fcn.0048e93b
add esp, 0xc
jmp 0x44094b
push edi
call fcn.0048e5a6
add esp, 4
mov dword [esp + 0x4c], 0x80004
test al, 0x20
je 0x44095f
mov dword [esp + 0x4c], 0x180004
test al, 0x10
je 0x440968
or dword [esp + 0x4c], 2
test al, 8
je 0x440974
or dword [esp + 0x4c], 0x2000
cmp byte [esp + 0x12], 0
mov ebp, 0x200
jne 0x440984
test al, 4
je 0x440988
or dword [esp + 0x4c], ebp
test al, 2
je 0x440994
or dword [esp + 0x4c], 0x800
test al, 1
je 0x4409a0
or dword [esp + 0x4c], 0x1000
call fcn.00479520
push 0
push 0x403
mov bl, al
mov eax, dword [0x4c74a8]
push 0x44
push eax
call dword [sym.imp.USER32.dll_PostMessageW]
mov edi, 1
add dword [0x4c7640], edi
cmp byte [esp + 0x13], 0
jne 0x4409ea
mov eax, dword [esp + 0x4c]
test al, 2
je 0x4409dd
test eax, 0x2000
je 0x4409ea
lea ecx, [esp + 0x18]
push ecx
call dword [sym.imp.COMDLG32.dll_GetOpenFileNameW]
jmp 0x4409f5
lea edx, [esp + 0x18]
push edx
call dword [sym.imp.COMDLG32.dll_GetSaveFileNameW]
sub dword [0x4c7640], edi
test bl, bl
mov esi, eax
mov eax, dword [0x4c39ac]
sete cl
mov byte [eax + 0xee], bl
mov byte [eax + 0xec], cl
cmp word [0x4c7ca8], 0
je 0x440a28
push 0x4c7ca8
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
test esi, esi
jne 0x440a8e
mov ecx, dword [esp + 0x14]
call fcn.00413230
cmp eax, edi
je 0x440a48
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10
call dword [sym.imp.COMDLG32.dll_CommDlgExtendedError]
test eax, eax
je 0x440a6c
mov edx, dword [esp + 0x21a80]
push edx
call fcn.004306d0
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10
mov eax, dword [0x4c7ca4]
push edi
push 0
push 0xffffffffffffffff
push 0x4a3438
push eax
call fcn.00476c40
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10
mov ecx, dword [0x4c7ca4]
push edi
push 0
push 0xffffffffffffffff
push 0x4a0924
push ecx
call fcn.00476c40
test dword [esp + 0x4c], ebp
je 0x440b9e
cmp byte [esp + 0x12], 0
lea eax, [esp + 0x1a78]
je 0x440b80
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
test cx, cx
jne 0x440ac3
sub eax, edx
sar eax, 1
cmp word [esp + eax*2 + 0x1a7a], cx
jne 0x440b52
lea edx, [esp + 0x1a78]
push 0x5c
push edx
call fcn.0048eedd
mov esi, eax
add esp, 8
test esi, esi
je 0x440b9e
mov ecx, esi
lea edx, [esp + 0x1a78]
sub ecx, edx
and ecx, 0xfffffffe
mov eax, 0xa
mov word [esi], ax
cmp ecx, 4
jne 0x440b9e
cmp word [esi - 2], 0x3a
jne 0x440b9e
mov eax, esi
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
test cx, cx
jne 0x440b27
sub eax, edx
sar eax, 1
lea eax, [eax + eax + 2]
push eax
lea ecx, [esi + 2]
push esi
push ecx
call fcn.0048dd80
mov edx, 0x5c
add esp, 0xc
mov word [esi], dx
jmp 0x440b9e
lea eax, [esp + 0x1a78]
lea esp, [esp]
cmp word [eax], 0
je 0x440b6f
add eax, 2
cmp word [eax], 0
jne 0x440b66
cmp word [eax + 2], 0
je 0x440b9e
mov ecx, 0xa
mov word [eax], cx
jmp 0x440b60
cmp word [eax], 0
je 0x440b8f
add eax, 2
cmp word [eax], 0
jne 0x440b86
cmp word [eax + 2], 0
mov edx, 0xa
mov word [eax], dx
jne 0x440b80
mov ecx, dword [esp + 0x14]
push edi
push 0
push 0xffffffffffffffff
lea eax, [esp + 0x1a84]
push eax
push ecx
call fcn.00476c40
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10