Function at 0x465020
Capabilities:
Check if file exists
Delete file
Extract resource via kernel32 functions
Get common file path
Set current directory

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4775df
mov eax, dword fs:[0]
push eax
push ecx
sub esp, 0xb8
push ebx
push esi
push edi
mov eax, dword [0x497750]
xor eax, ebp
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov dword [ebp - 0x10], esp
mov dword [ebp - 4], 0
push ecx
mov eax, esp
mov dword [ebp - 0x50], esp
lea ecx, [ebp + 8]
push ecx
push 0x481ad0
push eax
call fcn.00401950
add esp, 0xc
mov dword [ebp - 0xa4], eax
mov ecx, 0x49c320
call fcn.0046c9c0
call fcn.004046a0
mov dword [ebp - 0x20], eax
push 1
lea edx, [ebp - 0x58]
push edx
lea ecx, [ebp + 8]
call fcn.004042f0
mov dword [ebp - 0xa8], eax
mov eax, dword [ebp - 0xa8]
mov dword [ebp - 0xac], eax
mov byte [ebp - 4], 1
push 0x481ae8
mov ecx, dword [ebp - 0xac]
push ecx
call fcn.004069a0
add esp, 8
mov byte [ebp - 0x51], al
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x58]
call fcn.004034b0
movzx edx, byte [ebp - 0x51]
test edx, edx
je 0x4650e2
push 0x481aec
lea ecx, [ebp + 8]
call fcn.00405050
lea ecx, [ebp + 8]
call fcn.00406be0
push eax
call fcn.0045b0b0
mov dword [ebp - 0x1c], 0
mov ecx, 0x49c5a0
call fcn.00406be0
push eax
call dword [sym.imp.SHLWAPI.dll_PathFileExistsW]
test eax, eax
je 0x465120
mov ecx, 0x49c5a0
call fcn.00406be0
push eax
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
mov dword [ebp - 0x1c], eax
push 0x481af0
push 0x384
mov eax, dword [ebp - 0x1c]
push eax
call dword [sym.imp.KERNEL32.dll_FindResourceW]
mov dword [ebp - 0x24], eax
cmp dword [ebp - 0x24], 0
jne 0x46515e
mov dword [ebp - 0x68], str._Out__DATA_resource_not_found_in_current_executable
lea ecx, [ebp - 0x68]
push ecx
lea ecx, [ebp - 0x64]
call fcn.0043afc2
push 0x48f5c8
lea edx, [ebp - 0x64]
push edx
call fcn.004419cf
cmp dword [ebp - 0x24], 0
je 0x465404
mov eax, dword [ebp - 0x24]
push eax
mov ecx, dword [ebp - 0x1c]
push ecx
call dword [sym.imp.KERNEL32.dll_LoadResource]
mov dword [ebp - 0x2c], eax
cmp dword [ebp - 0x2c], 0
je 0x4653c7
mov edx, dword [ebp - 0x2c]
push edx
call dword [sym.imp.KERNEL32.dll_LockResource]
mov dword [ebp - 0x44], eax
mov eax, dword [ebp - 0x24]
push eax
mov ecx, dword [ebp - 0x1c]
push ecx
call dword [sym.imp.KERNEL32.dll_SizeofResource]
mov dword [ebp - 0x30], eax
lea ecx, [ebp - 0x40]
call fcn.00427339
mov byte [ebp - 4], 2
push 0x481b34
lea edx, [ebp + 8]
push edx
lea eax, [ebp - 0x70]
push eax
call fcn.004018a0
add esp, 0xc
mov dword [ebp - 0xb0], eax
mov ecx, dword [ebp - 0xb0]
mov dword [ebp - 0xb4], ecx
mov byte [ebp - 4], 3
push 0
push 0x1002
mov ecx, dword [ebp - 0xb4]
call fcn.00406be0
push eax
lea ecx, [ebp - 0x40]
call fcn.0042777d
mov dword [ebp - 0x6c], eax
mov byte [ebp - 4], 2
lea ecx, [ebp - 0x70]
call fcn.004034b0
cmp dword [ebp - 0x6c], 0
je 0x46539f
mov edx, dword [ebp - 0x30]
push edx
mov eax, dword [ebp - 0x44]
push eax
lea ecx, [ebp - 0x40]
call fcn.00427087
lea ecx, [ebp - 0x40]
call fcn.0042716d
lea ecx, [ebp - 0x40]
call fcn.004272d7
lea ecx, [ebp - 0x48]
call fcn.00402df0
mov byte [ebp - 4], 4
push 0x104
lea ecx, [ebp - 0x48]
call fcn.00402b60
push eax
push 0x104
call dword [sym.imp.KERNEL32.dll_GetCurrentDirectoryW]
push 0xffffffffffffffff
lea ecx, [ebp - 0x48]
call fcn.00402b30
lea ecx, [ebp + 8]
call fcn.00406be0
push eax
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
mov byte [ebp - 4], 5
push ecx
mov ecx, esp
mov dword [ebp - 0x74], esp
lea edx, [ebp + 8]
push edx
call fcn.004029b0
mov dword [ebp - 0xb8], eax
mov eax, dword [ebp - 0xb8]
mov dword [ebp - 0xbc], eax
mov byte [ebp - 4], 6
push ecx
mov ecx, esp
mov dword [ebp - 0x78], esp
push 0x481b44
lea edx, [ebp + 8]
push edx
push ecx
call fcn.004018a0
add esp, 0xc
mov dword [ebp - 0xc0], eax
mov byte [ebp - 4], 5
call fcn.00462b50
add esp, 8
jmp 0x465342
mov dword [ebp - 4], 4
push str.data.7z
lea edx, [ebp + 8]
push edx
lea eax, [ebp - 0x90]
push eax
call fcn.004018a0
add esp, 0xc
mov dword [ebp - 0xc8], eax
mov ecx, dword [ebp - 0xc8]
call fcn.00406be0
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
lea ecx, [ebp - 0x90]
call fcn.004034b0
lea ecx, [ebp - 0x48]
call fcn.00406be0
push eax
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
mov byte [ebp - 4], 2
lea ecx, [ebp - 0x48]
call fcn.004034b0
mov ecx, dword [ebp - 0x2c]
push ecx
call dword [sym.imp.KERNEL32.dll_FreeResource]
cmp dword [ebp - 0x1c], 0
je 0x4653b9
mov edx, dword [ebp - 0x1c]
push edx
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x40]
call fcn.00427446
jmp 0x465404
cmp dword [ebp - 0x1c], 0
je 0x4653d7
mov eax, dword [ebp - 0x1c]
push eax
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
mov dword [ebp - 0xa0], str.Unable_to_extract_install_resource_
lea ecx, [ebp - 0xa0]
push ecx
lea ecx, [ebp - 0x9c]
call fcn.0043afc2
push 0x48f5c8
lea edx, [ebp - 0x9c]
push edx
call fcn.004419cf
mov dword [ebp - 4], 0xffffffff
lea ecx, [ebp + 8]
call fcn.004034b0
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret