Wine menubuilder.exe crash
Make sure you did exactly this step by step:


Create a new blank wrapper with the latest Wine Engine
Select Install software and click SteamSetup.exe in Downloads or wherever you put it
Go through the setup wizard.
This is where the crash takes place. Force Quit all Wineskin processes.
Launch your wrapper again and click Advanced options
In the EXE flags, type -no-dwrite, tick use Start.exe and change nothing.exe on top to C:\Program Files\Steam\Steam.exe
Now do a test run and see if it worked. Now whenever you launch your wrapper, Steam should launch.