I have downloaded the no-install portable version of Workbench. When I run the exe file (on Windows XP), nothing happens. Does it need some MySQL running? I think it's standalone, right? I have XAMPP for MySQL. Any dependency etc?
You need to install the following in order to run the current version of MySQL Workbench:
See: dev.mysql.com/doc/workbench/en/wb-requirements-software.html .