Function at 0x403711
Capabilities:
Accept command line arguments
Check for time delay via gettickcount
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Set current directory
Shutdown system
Terminate process

Disassembly:
sub esp, 0x188
push ebx
push ebp
push esi
xor ebx, ebx
push edi
mov dword [esp + 0x1c], ebx
mov dword [esp + 0x10], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x18], ebx
mov byte [esp + 0x14], 0x20
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov dword [esp + 0x20], eax
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push 8
mov dword [0x455618], eax
call fcn.0040606b
push ebx
push 0x160
mov dword [0x455528], eax
lea eax, [esp + 0x40]
push eax
push ebx
push 0x409b0f
call dword [sym.imp.SHELL32.dll_SHGetFileInfoA]
push str.NSIS_Error
push 0x451520
call fcn.00405dc1
call dword [sym.imp.KERNEL32.dll_GetCommandLineA]
push eax
mov edi, 0x47e050
push edi
call fcn.00405dc1
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
cmp byte [0x47e050], 0x22
mov dword [0x455530], eax
mov eax, edi
jne 0x4037be
mov byte [esp + 0x14], 0x22
mov eax, 0x47e051
push dword [esp + 0x14]
push eax
call fcn.00405afc
push eax
call dword [sym.imp.USER32.dll_CharNextA]
mov esi, eax
mov dword [esp + 0x24], esi
jmp 0x40385c
cmp al, 0x20
jne 0x4037e4
inc esi
cmp byte [esi], 0x20
je 0x4037de
cmp byte [esi], 0x22
mov byte [esp + 0x14], 0x20
jne 0x4037f4
inc esi
mov byte [esp + 0x14], 0x22
cmp byte [esi], 0x2f
jne 0x40384a
inc esi
cmp byte [esi], 0x53
jne 0x40380f
mov al, byte [esi + 1]
cmp al, 0x20
je 0x40380a
cmp al, bl
jne 0x40380f
or dword [esp + 0x18], 2
push 4
pop ebp
push ebp
push str.NCRC
push esi
call fcn.00403699
add esp, 0xc
test eax, eax
jne 0x403834
mov al, byte [esi + 4]
cmp al, 0x20
je 0x403830
cmp al, bl
jne 0x403834
or dword [esp + 0x18], ebp
push ebp
lea eax, [esi - 2]
push str.__D
push eax
call fcn.00403699
add esp, 0xc
test eax, eax
je 0x403868
push dword [esp + 0x14]
push esi
call fcn.00405afc
mov esi, eax
cmp byte [esi], 0x22
jne 0x40385c
inc esi
mov al, byte [esi]
cmp al, bl
jne 0x4037da
jmp 0x403884
push ebp
lea eax, [esi - 2]
push ebx
push eax
call fcn.0040883f
add esp, 0xc
add esi, 2
push esi
push 0x480054
call fcn.00405dc1
mov ebp, 0x488064
push ebp
push 0x2004
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
call fcn.00403665
test eax, eax
jne 0x4038c2
push 0x1fff
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
push str.Temp
push ebp
call sub.KERNEL32.dll_lstrcatA
call fcn.00403665
test eax, eax
je 0x403974
push 0x486060
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push dword [esp + 0x18]
call fcn.00403420
cmp eax, ebx
mov dword [esp + 0x10], eax
jne 0x403974
cmp dword [0x455584], ebx
je 0x403947
push ebx
push edi
call fcn.00405afc
mov esi, eax
jmp 0x40390a
push 4
push 0x409ae4
push esi
call fcn.00403699
add esp, 0xc
test eax, eax
je 0x40390e
dec esi
cmp esi, edi
jae 0x4038f5
cmp esi, edi
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x40399f
mov byte [esi], bl
add esi, 4
push esi
call fcn.00406491
test eax, eax
je 0x403974
push esi
push 0x480054
call fcn.00405dc1
push esi
push 0x482058
call fcn.00405dc1
mov dword [esp + 0x10], ebx
or dword [0x45560c], 0xffffffff
call fcn.00405744
mov dword [esp + 0x1c], eax
call dword [sym.imp.KERNEL32.dll_GetTickCount]
sub eax, dword [esp + 0x20]
push eax
push dword [esp + 0x20]
call fcn.00407674
pop ecx
pop ecx
push 1
call fcn.00405e8a
call fcn.004036e7
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
je 0x403a74
push 0x200010
push dword [esp + 0x14]
call fcn.00405a98
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push str.nsu.tmp
push ebp
call sub.KERNEL32.dll_lstrcatA
mov esi, 0x48405c
push esi
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcmpiA]
test eax, eax
je 0x403974
push ebx
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
push ebp
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryA]
cmp byte [0x480054], bl
jne 0x4039dd
push esi
push 0x480054
call fcn.00405dc1
push dword [esp + 0x24]
push section..ndata
call fcn.00405dc1
push 0x409ad4
push 0x458004
call fcn.00405dc1
push 0x1a
pop edi
mov esi, 0x434508
mov eax, dword [0x455534]
push dword [eax + 0x134]
push esi
call fcn.00406513
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [esp + 0x10], ebx
je 0x403a5f
push 1
push esi
push 0x48c06c
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
je 0x403a5f
push ebx
push esi
call fcn.004068fb
mov eax, dword [0x455534]
push dword [eax + 0x138]
push esi
call fcn.00406513
push esi
call fcn.00405a37
cmp eax, ebx
je 0x403a5f
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc byte [0x458004]
dec edi
jne 0x403a02
push ebx
push ebp
call fcn.004068fb
jmp 0x403974
cmp dword [0x4555f4], ebx
je 0x403af7
push 3
call fcn.0040606b
push 4
mov ebp, eax
call fcn.0040606b
push 5
mov esi, eax
call fcn.0040606b
cmp ebp, ebx
mov edi, eax
je 0x403ae3
cmp esi, ebx
je 0x403ae3
cmp edi, ebx
je 0x403ae3
lea eax, [esp + 0x20]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x403ae3
lea eax, [esp + 0x2c]
push eax
push str.SeShutdownPrivilege
push ebx
call esi
push ebx
push ebx
push ebx
lea eax, [esp + 0x34]
push eax
push ebx
push dword [esp + 0x34]
mov dword [esp + 0x40], 1
mov dword [esp + 0x4c], 2
call edi
push ebx
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403af7
push 9
call fcn.00401414
mov eax, dword [0x45560c]
cmp eax, 0xffffffff
je 0x403b05
mov dword [esp + 0x1c], eax
push dword [esp + 0x1c]
jmp 0x403999