Function at 0x430b9c
Capabilities:
Check if file exists
Delete file
Get common file path
Get file attributes

Disassembly:
mov eax, 0x485496
call fcn.0046694c
sub esp, 0x2b4
push ebx
push esi
push edi
mov al, byte [ebp + 0x33]
xor ebx, ebx
mov dword [ebp - 4], ebx
mov byte [ebp - 0x20], al
mov dword [ebp - 0x1c], ebx
mov dword [ebp - 0x18], ebx
mov dword [ebp - 0x14], ebx
lea eax, [ebp - 0x20]
lea ecx, [ebp + 8]
push eax
push ebx
push 0x3b
mov byte [ebp - 4], 1
call fcn.004239db
cmp dword [ebp - 0x1c], ebx
je 0x430c43
mov eax, dword [ebp - 0x18]
push 0x28
sub eax, dword [ebp - 0x1c]
pop ecx
mov edi, 0x48a660
mov esi, 0x48a658
cdq
idiv ecx
cmp eax, 3
jne 0x430c2d
lea eax, [ebp - 0xd]
push ebx
push eax
push 0x4a8be0
lea ecx, [ebp - 0x60]
mov dword [ebp - 0x60], edi
mov dword [ebp - 0x40], esi
call fcn.004011a9
lea eax, [ebp - 0x60]
lea ecx, [ebp - 0x20]
push eax
mov byte [ebp - 4], 2
push dword [ebp - 0x18]
call fcn.004268ea
lea ecx, [ebp - 0x60]
mov byte [ebp - 4], 1
call fcn.00401093
cmp dword [ebp - 0x1c], ebx
je 0x430c43
mov eax, dword [ebp - 0x18]
push 0x28
sub eax, dword [ebp - 0x1c]
pop ecx
cdq
idiv ecx
cmp eax, 4
je 0x430c4b
push 0xfffffffffffffffc
pop esi
jmp 0x430e7e
mov eax, dword [ebp - 0x1c]
mov eax, dword [eax + 0x30]
cmp eax, ebx
jne 0x430c5a
mov eax, 0x48a67c
push eax
call fcn.004680fc
mov dword [ebp - 0x34], eax
mov eax, dword [ebp - 0x1c]
pop ecx
mov eax, dword [eax + 0x58]
cmp eax, ebx
jne 0x430c73
mov eax, 0x48a67c
push eax
call fcn.004680fc
mov dword [ebp - 0x38], eax
lea eax, [ebp - 0x8c]
push eax
call fcn.0041170d
pop ecx
pop ecx
lea ecx, [ebp - 0x8c]
mov byte [ebp - 4], 3
mov byte [ebp - 0xd], bl
call fcn.004042dd
push eax
call dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
cmp eax, 0xffffffff
jne 0x430dcc
lea eax, [ebp - 0x21]
push ebx
push eax
lea ecx, [ebp - 0x60]
mov dword [ebp - 0x60], edi
mov dword [ebp - 0x40], esi
call fcn.00401907
mov esi, 0x104
lea eax, [ebp - 0x30]
push esi
push eax
lea ecx, [ebp - 0x60]
mov byte [ebp - 4], 4
call fcn.0040b177
mov edi, eax
mov ecx, dword [edi]
mov byte [ebp - 4], 5
call fcn.00401a14
push eax
push esi
mov dword [edi + 8], eax
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
lea ecx, [ebp - 0x30]
mov byte [ebp - 4], 4
call fcn.0040b27f
lea eax, [ebp - 0x30]
push esi
push eax
lea ecx, [ebp - 0x8c]
call fcn.00402f01
mov edi, eax
mov ecx, dword [edi]
mov byte [ebp - 4], 6
call fcn.004042dd
push eax
push ebx
push 0x4a2de4
lea ecx, [ebp - 0x60]
mov dword [edi + 8], eax
call fcn.00401a14
push eax
call dword [sym.imp.KERNEL32.dll_GetTempFileNameA]
lea ecx, [ebp - 0x30]
mov byte [ebp - 4], 4
call fcn.00403013
lea eax, [ebp - 0x2c0]
push esi
push eax
push dword [0x4aac20]
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
lea eax, [ebp - 0x2c0]
lea ecx, [ebp - 0x1bc]
push eax
call fcn.00432003
push ebx
lea ecx, [ebp - 0x8c]
mov byte [ebp - 4], 7
call fcn.004042dd
push eax
push str.ISSetup.dll
lea ecx, [ebp - 0x1bc]
call fcn.00432dc1
cmp eax, 1
je 0x430dad
cmp dword [ebp - 0x70], ebx
mov esi, dword [0x48a6b0]
je 0x430d9e
push dword [ebp - 0x70]
call dword [sym.imp.OLEAUT32.dll_SysStringLen]
mov dword [ebp - 0x70], ebx
push esi
push ebx
lea ecx, [ebp - 0x88]
call fcn.00405bfe
jmp 0x430db1
mov byte [ebp - 0xd], 1
lea ecx, [ebp - 0x1bc]
mov byte [ebp - 4], 4
call fcn.00432643
lea ecx, [ebp - 0x60]
mov byte [ebp - 4], 3
call fcn.00401093
cmp dword [ebp - 0x80], ebx
mov esi, 0x1b59
je 0x430e2d
lea eax, [ebp - 0x8c]
lea ecx, [ebp - 0x64]
push eax
call fcn.004115e1
lea ecx, [ebp - 0x64]
mov byte [ebp - 4], 8
call fcn.0041184a
test eax, eax
jne 0x430e09
mov esi, dword [0x4aac18]
lea ecx, [ebp - 0x64]
mov byte [ebp - 4], 3
call fcn.004116ea
jmp 0x430e6f
mov eax, dword [ebp - 0x1c]
lea ecx, [eax + 0x78]
push ecx
lea ecx, [ebp - 0x64]
push dword [ebp - 0x38]
push dword [ebp - 0x34]
push eax
call fcn.00411ea5
lea ecx, [ebp - 0x64]
mov esi, eax
mov byte [ebp - 4], 3
call fcn.004116ea
cmp byte [ebp - 0xd], bl
je 0x430e44
lea ecx, [ebp - 0x8c]
call fcn.004042dd
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp byte [ebp + 0x30], bl
je 0x430e6f
lea ecx, [ebp - 0x30]
call fcn.004020ad
push dword [0x4aac20]
lea ecx, [ebp - 0x30]
mov byte [ebp - 4], 9
call fcn.004020e1
lea ecx, [ebp - 0x30]
mov byte [ebp - 4], 3
call fcn.004020da
lea ecx, [ebp - 0x8c]
mov byte [ebp - 4], 1
call fcn.00402438
lea ecx, [ebp - 0x20]
mov byte [ebp - 4], bl
call fcn.00423942
or dword [ebp - 4], 0xffffffff
lea ecx, [ebp + 8]
call fcn.00401093
mov ecx, dword [ebp - 0xc]
mov eax, esi
pop edi
pop esi
pop ebx
mov dword fs:[0], ecx
leave
ret