Function at 0x440aa0
Capabilities:
Check if file exists
Get file attributes
Set current directory

Disassembly:
mov eax, 0x21a6c
call fcn.00499310
cmp dword [0x4c8644], 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 [0x4c83f0]
mov dword [esp + 0x14], ecx
jl 0x440af6
mov ecx, dword [esp + 0x21a80]
push 0x4ac274
push 0
push str.The_maximum_number_of_File_Dialogs_has_been_reached.
call fcn.0042e370
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 0x440c14
cmp word [eax], dx
je 0x440c14
push 0x103
push eax
lea eax, [esp + 0x78]
push eax
call fcn.00490814
add esp, 0xc
push 3
lea edx, [esp + 0x74]
xor ecx, ecx
push 0x4ab774
push edx
mov word [esp + 0x282], cx
call fcn.0048f7f6
add esp, 0xc
test eax, eax
sete bl
test bl, bl
je 0x440b90
lea eax, [esp + 0x70]
push 0x7d
push eax
call fcn.0048e8f1
add esp, 8
test eax, eax
je 0x440c1b
cmp word [eax + 2], 0
je 0x440c1b
lea eax, [esp + 0x70]
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
test cx, cx
jne 0x440b74
sub eax, edx
sar eax, 1
cmp word [esp + eax*2 + 0x6e], 0x5c
jne 0x440ba4
jmp 0x440c1b
lea ecx, [esp + 0x70]
push ecx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
je 0x440ba4
test al, 0x10
jne 0x440c1b
lea edx, [esp + 0x70]
push 0x5c
push edx
call fcn.0048f82f
mov esi, eax
add esp, 8
test esi, esi
je 0x440be3
push 0xfffe
lea eax, [esi + 2]
push eax
lea ecx, [esp + 0x1a80]
push ecx
call fcn.00490814
xor edx, edx
add esp, 0xc
xor eax, eax
mov word [esp + 0x21a74], dx
mov word [esi], ax
jmp 0x440c1b
test bl, bl
jne 0x440c1b
push 0xfffe
lea ecx, [esp + 0x74]
push ecx
lea edx, [esp + 0x1a80]
push edx
call fcn.00490814
xor eax, eax
add esp, 0xc
xor ecx, ecx
mov word [esp + 0x21a74], ax
mov word [esp + 0x70], cx
jmp 0x440c1b
xor edx, edx
mov word [esp + 0x70], dx
test edi, edi
je 0x440c47
cmp word [edi], 0
je 0x440c47
push 0x3ff
lea eax, [esp + 0x127c]
push edi
push eax
call fcn.00490814
add esp, 0xc
xor ecx, ecx
mov word [esp + 0x1a76], cx
jmp 0x440c67
mov edx, dword [0x4cb0d4]
push edx
push str.Select_File____s
mov esi, 0x400
lea edi, [esp + 0x1280]
call fcn.00474620
add esp, 8
xor eax, eax
xor ecx, ecx
mov word [esp + 0xa78], ax
mov word [esp + 0x278], cx
cmp word [ebp], ax
je 0x440ce8
push 0x28
push ebp
call fcn.0048e8f1
add esp, 8
push 0x3ff
test eax, eax
je 0x440d2c
add eax, 2
push eax
lea edx, [esp + 0x280]
push edx
call fcn.00490814
add esp, 0xc
lea ecx, [esp + 0x278]
xor eax, eax
push 0x29
push ecx
mov word [esp + 0xa7e], ax
call fcn.0048f82f
add esp, 8
test eax, eax
je 0x440cd4
xor edx, edx
mov word [eax], dx
jmp 0x440d47
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.004969f0
mov ebx, dword [0x4c49ac]
add esp, 0xc
add ebx, 0x4c
mov dword [esp + 0x18], 0x58
call fcn.0045bc10
test eax, eax
je 0x440da5
mov ecx, dword [0x4c49ac]
mov edx, dword [ecx + 0x4c]
mov eax, dword [edx + 4]
mov dword [esp + 0x1c], eax
jmp 0x440dad
lea ecx, [esp + 0x27c]
push ebp
push ecx
call fcn.00490814
add esp, 0xc
xor edx, edx
mov word [esp + 0xa76], dx
cmp word [esp + 0x278], 0
je 0x440cde
push 0
push 0xffffffffffffffff
push 0xffffffffffffffff
push 1
push 0x4ac274
lea eax, [esp + 0x28c]
push 0x4a90fc
push eax
xor eax, eax
call fcn.00474e10
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.00474620
add esp, 0x1c
jmp 0x440ce8
mov dword [esp + 0x1c], 0
cmp word [esp + 0xa78], 0
lea ecx, [esp + 0x1278]
mov dword [esp + 0x48], ecx
je 0x440dd0
lea edx, [esp + 0xa78]
mov dword [esp + 0x24], edx
jmp 0x440dd8
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 0x440e2c
push 2
push esi
call fcn.0048ed6e
add esp, 8
test eax, eax
je 0x440e2c
and esi, 0xffffffdf
movzx eax, si
cmp eax, 0x4d
je 0x440e40
cmp eax, 0x53
jne 0x440e48
mov byte [esp + 0x13], 1
jmp 0x440e45
mov byte [esp + 0x12], 1
add edi, 2
mov eax, edi
call fcn.0040d330
test al, al
je 0x440e62
push 0x10
push 0
push edi
call fcn.0048f14b
add esp, 0xc
jmp 0x440e6b
push edi
call fcn.0048edb6
add esp, 4
mov dword [esp + 0x4c], 0x80004
test al, 0x20
je 0x440e7f
mov dword [esp + 0x4c], 0x180004
test al, 0x10
je 0x440e88
or dword [esp + 0x4c], 2
test al, 8
je 0x440e94
or dword [esp + 0x4c], 0x2000
cmp byte [esp + 0x12], 0
mov ebp, 0x200
jne 0x440ea4
test al, 4
je 0x440ea8
or dword [esp + 0x4c], ebp
test al, 2
je 0x440eb4
or dword [esp + 0x4c], 0x800
test al, 1
je 0x440ec0
or dword [esp + 0x4c], 0x1000
call fcn.00479d30
push 0
push 0x403
mov bl, al
mov eax, dword [0x4c84a8]
push 0x44
push eax
call dword [sym.imp.USER32.dll_PostMessageW]
mov edi, 1
add dword [0x4c8644], edi
cmp byte [esp + 0x13], 0
jne 0x440f0a
mov eax, dword [esp + 0x4c]
test al, 2
je 0x440efd
test eax, 0x2000
je 0x440f0a
lea ecx, [esp + 0x18]
push ecx
call dword [sym.imp.COMDLG32.dll_GetOpenFileNameW]
jmp 0x440f15
lea edx, [esp + 0x18]
push edx
call dword [sym.imp.COMDLG32.dll_GetSaveFileNameW]
sub dword [0x4c8644], edi
test bl, bl
mov esi, eax
mov eax, dword [0x4c49ac]
sete cl
mov byte [eax + 0xee], bl
mov byte [eax + 0xec], cl
cmp word [0x4c8cb0], 0
je 0x440f48
push 0x4c8cb0
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
test esi, esi
jne 0x440fae
mov ecx, dword [esp + 0x14]
call fcn.004133a0
cmp eax, edi
je 0x440f68
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 0x440f8c
mov edx, dword [esp + 0x21a80]
push edx
call fcn.00430a80
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10
mov eax, dword [0x4c8ca8]
push edi
push 0
push 0xffffffffffffffff
push 0x4a4440
push eax
call fcn.00477430
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10
mov ecx, dword [0x4c8ca8]
push edi
push 0
push 0xffffffffffffffff
push 0x4a1918
push ecx
call fcn.00477430
test dword [esp + 0x4c], ebp
je 0x4410be
cmp byte [esp + 0x12], 0
lea eax, [esp + 0x1a78]
je 0x4410a0
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
test cx, cx
jne 0x440fe3
sub eax, edx
sar eax, 1
cmp word [esp + eax*2 + 0x1a7a], cx
jne 0x441072
lea edx, [esp + 0x1a78]
push 0x5c
push edx
call fcn.0048f82f
mov esi, eax
add esp, 8
test esi, esi
je 0x4410be
mov ecx, esi
lea edx, [esp + 0x1a78]
sub ecx, edx
and ecx, 0xfffffffe
mov eax, 0xa
mov word [esi], ax
cmp ecx, 4
jne 0x4410be
cmp word [esi - 2], 0x3a
jne 0x4410be
mov eax, esi
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
test cx, cx
jne 0x441047
sub eax, edx
sar eax, 1
lea eax, [eax + eax + 2]
push eax
lea ecx, [esi + 2]
push esi
push ecx
call fcn.0048e590
mov edx, 0x5c
add esp, 0xc
mov word [esi], dx
jmp 0x4410be
lea eax, [esp + 0x1a78]
lea esp, [esp]
cmp word [eax], 0
je 0x44108f
add eax, 2
cmp word [eax], 0
jne 0x441086
cmp word [eax + 2], 0
je 0x4410be
mov ecx, 0xa
mov word [eax], cx
jmp 0x441080
cmp word [eax], 0
je 0x4410af
add eax, 2
cmp word [eax], 0
jne 0x4410a6
cmp word [eax + 2], 0
mov edx, 0xa
mov word [eax], dx
jne 0x4410a0
mov ecx, dword [esp + 0x14]
push edi
push 0
push 0xffffffffffffffff
lea eax, [esp + 0x1a84]
push eax
push ecx
call fcn.00477430
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x21a6c
ret 0x10