There is a --locale option (those are two dashes) to the vmware.exe on Windows. So you can create a new shortcut with the option.
This results in a Simplified Chinese UI.
vmware.exe --locale=zh_CN
This results in a Japanese UI.
vmware.exe --locale=ja
I don't know what the correct option is for English/Latin but I suppose any incorrect value will fallback to English (just like deleting the folders) as currently there are zh_CN and ja subfolders in the messages folder.
vmware.exe --locale=windows-1252
