Function at 0x40fbf2
Capabilities:
Accept command line arguments
Read file via mapping
Set environment variable

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x5c
push ebx
push esi
push edi
push 1
call fcn.00410b0c
xor ebx, ebx
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
mov ecx, 0x44b748
call fcn.00411661
mov esi, 0x7000
push esi
push ebx
mov edi, 0x4369d8
push edi
call fcn.00419f70
add esp, 0xc
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov dword [ebp - 8], eax
cmp eax, ebx
je 0x40fca6
push eax
call fcn.0040d33c
cmp byte [0x43da31], bl
je 0x40fc98
push str.winrarsfxmappingfile.tmp
push ebx
push 4
call dword [sym.imp.KERNEL32.dll_OpenFileMappingW]
mov dword [ebp - 8], eax
cmp eax, ebx
je 0x40fc8d
push esi
push ebx
push ebx
push 4
push eax
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
mov dword [ebp - 4], eax
cmp eax, ebx
je 0x40fc84
push esi
push eax
push edi
call fcn.0041b9b0
add esp, 0xc
push edi
push str.sfxcmd
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
push dword [ebp - 8]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x40fca6
push dword [ebp - 8]
push str.sfxcmd
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push 0x800
mov esi, 0x4359d8
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
push esi
push str.sfxname
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
mov edi, eax
push 0x64
push edi
mov dword [0x42f764], edi
mov dword [0x42f768], edi
call dword [sym.imp.USER32.dll_LoadIconW]
push 0x65
push dword [0x42f768]
mov dword [0x4359d4], eax
call dword [sym.imp.USER32.dll_LoadBitmapW]
lea ecx, [ebp - 0xc]
mov dword [0x4359d0], eax
call fcn.00419780
push esi
mov ecx, 0x42f778
call fcn.0040c065
lea ecx, [ebp - 0x5c]
call fcn.00418c23
lea ecx, [ebp - 0x34]
call fcn.00418c23
push 0x64
call fcn.0040cf23
push 0x64
mov dword [ebp - 0x40], eax
call fcn.0040cf23
push ebx
push 0x40f36a
mov dword [ebp - 0x18], eax
push ebx
lea eax, [ebp - 0x5c]
mov dword [0x4349cc], eax
push str.STARTDLG
lea eax, [ebp - 0x34]
push edi
mov dword [0x4349c8], eax
call dword [sym.imp.USER32.dll_DialogBoxParamW]
lea ecx, [ebp - 0x34]
mov dword [0x4349c8], ebx
mov dword [0x4349cc], ebx
call fcn.00418c45
lea ecx, [ebp - 0x5c]
call fcn.00418c45
lea ecx, [ebp - 0xc]
call fcn.004197da
cmp byte [0x43da28], bl
je 0x40fd85
call fcn.0040d587
mov ecx, 0x448fd0
call fcn.0040ccc6
cmp dword [0x43da0c], ebx
jbe 0x40fda3
push dword [0x43da00]
call fcn.00419c26
pop ecx
push dword [0x4359d4]
mov esi, dword [sym.imp.GDI32.dll_DeleteObject]
call esi
mov eax, dword [0x4359d0]
cmp eax, ebx
je 0x40fdbd
push eax
call esi
cmp dword [0x42f76c], ebx
jne 0x40fddc
cmp byte [0x43d9ea], bl
je 0x40fddc
push 0xff
mov ecx, 0x42f76c
call fcn.004062b2
mov eax, dword [0x43da1c]
mov byte [0x43d9ea], 1
cmp eax, ebx
je 0x40fdf2
push eax
call fcn.0040d548
mov eax, dword [0x43da18]
cmp eax, ebx
je 0x40fe02
push eax
call dword [sym.imp.KERNEL32.dll_Sleep]
call dword [sym.imp.ole32.dll_OleUninitialize]
mov eax, dword [0x43da14]
pop edi
pop esi
cmp eax, ebx
pop ebx
ja 0x40fe19
mov eax, dword [0x42f76c]
leave
ret 0x10