Function at 0x4038a0
Capabilities:
Accept command line arguments
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, 0x2d4
push ebx
push ebp
push esi
push edi
push 0x20
xor ebp, ebp
pop esi
mov dword [esp + 0x18], ebp
mov dword [esp + 0x10], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x14], ebp
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebp
call dword [sym.imp.ole32.dll_OleInitialize]
push 8
mov dword [0x47eaf8], eax
call fcn.00406313
push ebp
push 0x2b4
mov dword [0x47ea00], eax
lea eax, [esp + 0x38]
push eax
push ebp
push 0x40a264
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x476a00
call fcn.00406020
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
mov edi, 0x4cf000
push edi
call fcn.00406020
push ebp
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
cmp word [0x4cf000], 0x22
mov dword [0x47ea08], eax
mov eax, edi
jne 0x403940
push 0x22
pop esi
mov eax, 0x4cf002
push esi
push eax
call fcn.00405d1d
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov esi, eax
mov dword [esp + 0x1c], esi
jmp 0x4039e7
push 0x20
pop ebx
cmp ax, bx
jne 0x403969
add esi, 2
cmp word [esi], bx
je 0x403961
cmp word [esi], 0x22
jne 0x403975
push 0x22
add esi, 2
pop ebx
cmp word [esi], 0x2f
jne 0x4039d5
add esi, 2
cmp word [esi], 0x53
jne 0x403997
movzx eax, word [esi + 2]
cmp eax, 0x20
je 0x403992
cmp ax, bp
jne 0x403997
or dword [esp + 0x14], 2
push 4
push str.NCRC
push esi
call fcn.0040381d
add esp, 0xc
test eax, eax
jne 0x4039be
movzx eax, word [esi + 8]
cmp eax, 0x20
je 0x4039b9
cmp ax, bp
jne 0x4039be
or dword [esp + 0x14], 4
push 4
lea eax, [esi - 4]
push str.__D
push eax
call fcn.0040381d
add esp, 0xc
test eax, eax
je 0x4039f5
push ebx
push esi
call fcn.00405d1d
mov esi, eax
cmp word [esi], 0x22
jne 0x4039e7
add esi, 2
movzx eax, word [esi]
cmp ax, bp
jne 0x403959
jmp 0x403a12
push 8
lea eax, [esi - 4]
push ebp
push eax
call fcn.00408234
add esp, 0xc
add esi, 4
push esi
push 0x4d3000
call fcn.00406020
mov ebx, 0x4e3000
push ebx
push 0x2000
call dword [sym.imp.KERNEL32.dll_GetTempPathW]
call fcn.004037e9
test eax, eax
jne 0x403a50
push 0x1ffb
push ebx
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push ebx
call sub.KERNEL32.dll_lstrcatW
call fcn.004037e9
test eax, eax
je 0x403ae9
push 0x4df000
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x14]
call fcn.004035a4
mov dword [esp + 0x10], eax
cmp eax, ebp
jne 0x403ae9
cmp dword [0x47ea64], ebp
je 0x403ad2
push ebp
push edi
call fcn.00405d1d
mov esi, eax
jmp 0x403a96
push 4
push 0x40a21c
push esi
call fcn.0040381d
add esp, 0xc
test eax, eax
je 0x403a9a
sub esi, 2
cmp esi, edi
jae 0x403a7f
mov dword [esp + 0x10], str.Error_launching_installer
cmp esi, edi
jb 0x403b14
xor eax, eax
mov word [esi], ax
add esi, 8
push esi
call fcn.00406795
test eax, eax
je 0x403ae9
push esi
push 0x4d3000
call fcn.00406020
push esi
push 0x4d7000
call fcn.00406020
mov dword [esp + 0x10], ebp
or dword [0x47eaec], 0xffffffff
call fcn.00405943
push 1
mov dword [esp + 0x1c], eax
call fcn.004060fe
call fcn.00403876
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebp
je 0x403beb
push 0x200010
push dword [esp + 0x14]
call fcn.00405cb7
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push 0x40a208
push ebx
call sub.KERNEL32.dll_lstrcatW
mov esi, 0x4db000
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x403ae9
push ebp
push ebx
call dword [sym.imp.KERNEL32.dll_CreateDirectoryW]
push ebx
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x4d3000], bp
jne 0x403b53
push esi
push 0x4d3000
call fcn.00406020
push dword [esp + 0x1c]
push section..ndata
call fcn.00406020
push 0x40a204
push 0x483000
call fcn.00406020
push 0x1a
pop edi
mov esi, 0x43dd18
mov eax, dword [0x47ea0c]
push dword [eax + 0x120]
push esi
call fcn.0040681c
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x10], ebp
je 0x403bd5
push 1
push esi
push 0x4eb000
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403bd5
push ebp
push esi
call fcn.00406c7c
mov eax, dword [0x47ea0c]
push dword [eax + 0x124]
push esi
call fcn.0040681c
push esi
call fcn.00405c56
cmp eax, ebp
je 0x403bd5
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebp
inc word [0x483000]
dec edi
jne 0x403b78
push ebp
push ebx
call fcn.00406c7c
jmp 0x403ae9
cmp dword [0x47ead4], ebp
je 0x403c6e
push 3
call fcn.00406313
push 4
mov ebx, eax
call fcn.00406313
push 5
mov esi, eax
call fcn.00406313
mov edi, eax
cmp ebx, ebp
je 0x403c5a
cmp esi, ebp
je 0x403c5a
cmp edi, ebp
je 0x403c5a
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebx
test eax, eax
je 0x403c5a
lea eax, [esp + 0x24]
push eax
push str.SeShutdownPrivilege
push ebp
call esi
push ebp
push ebp
push ebp
lea eax, [esp + 0x2c]
push eax
push ebp
push dword [esp + 0x30]
mov dword [esp + 0x38], 1
mov dword [esp + 0x44], 2
call edi
push ebp
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403c6e
push 9
call fcn.0040141a
mov eax, dword [0x47eaec]
cmp eax, 0xffffffff
je 0x403c7c
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
jmp 0x403b0e