Function at 0x40fb3e
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.00410a25
xor ebx, ebx
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
mov ecx, 0x44fa70
call fcn.00411ac4
mov esi, 0x7000
push esi
push ebx
mov edi, 0x43ace0
push edi
call fcn.0041a320
add esp, 0xc
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
mov dword [ebp - 8], eax
cmp eax, ebx
je 0x40fbf2
push eax
call fcn.0040d313
cmp byte [0x441d39], bl
je 0x40fbe4
push str.winrarsfxmappingfile.tmp
push ebx
push 4
call dword [sym.imp.KERNEL32.dll_OpenFileMappingW]
mov dword [ebp - 8], eax
cmp eax, ebx
je 0x40fbd9
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 0x40fbd0
push esi
push eax
push edi
call fcn.0041bd90
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 0x40fbf2
push dword [ebp - 8]
push str.sfxcmd
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
push 0x800
mov esi, 0x439ce0
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 [0x433a64], edi
mov dword [0x433a68], edi
call dword [sym.imp.USER32.dll_LoadIconW]
push 0x65
push dword [0x433a68]
mov dword [0x439cdc], eax
call dword [sym.imp.USER32.dll_LoadBitmapW]
lea ecx, [ebp - 0xc]
mov dword [0x439cd8], eax
call fcn.00419b69
push esi
mov ecx, 0x433a7c
call fcn.0040c0e1
lea ecx, [ebp - 0x5c]
call fcn.00418c8f
lea ecx, [ebp - 0x34]
call fcn.00418c8f
push 0x64
call fcn.004198e8
push 0x64
mov dword [ebp - 0x40], eax
call fcn.004198e8
push ebx
push 0x40f2b6
mov dword [ebp - 0x18], eax
push ebx
lea eax, [ebp - 0x5c]
mov dword [0x438cd4], eax
push str.STARTDLG
lea eax, [ebp - 0x34]
push edi
mov dword [0x438cd0], eax
call dword [sym.imp.USER32.dll_DialogBoxParamW]
lea ecx, [ebp - 0x34]
mov dword [0x438cd0], ebx
mov dword [0x438cd4], ebx
call fcn.00418cb1
lea ecx, [ebp - 0x5c]
call fcn.00418cb1
lea ecx, [ebp - 0xc]
call fcn.00419bc3
cmp byte [0x441d30], bl
je 0x40fcd1
call fcn.0040d57a
mov ecx, 0x44d2e0
call fcn.0040ce1c
cmp dword [0x441d14], ebx
jbe 0x40fcef
push dword [0x441d08]
call fcn.0041a00e
pop ecx
push dword [0x439cdc]
mov esi, dword [sym.imp.GDI32.dll_DeleteObject]
call esi
mov eax, dword [0x439cd8]
cmp eax, ebx
je 0x40fd09
push eax
call esi
cmp dword [0x433a6c], ebx
jne 0x40fd28
cmp byte [0x441cf2], bl
je 0x40fd28
push 0xff
mov ecx, 0x433a6c
call fcn.004061fa
mov eax, dword [0x441d24]
mov byte [0x441cf2], 1
cmp eax, ebx
je 0x40fd3e
push eax
call fcn.0040d53b
mov eax, dword [0x441d20]
cmp eax, ebx
je 0x40fd4e
push eax
call dword [sym.imp.KERNEL32.dll_Sleep]
call dword [sym.imp.ole32.dll_OleUninitialize]
mov eax, dword [0x441d1c]
pop edi
pop esi
cmp eax, ebx
pop ebx
ja 0x40fd65
mov eax, dword [0x433a6c]
leave
ret 0x10