To synthetize this lengthy post
In Windows7 (and also on my recent windows 10 installation), when you are localized (in french here), there is a microsoft hack to show in the windows explorer the translated name (for instance "programmes" in french).
As it is not a symbolic link (NTFS junction specifically), you cannot use this name elsewhere.
For instance in DOS command or in bash script, I use "program files" to access 64bits applications. If I use "programmes" there is an error.
In W10, when you copypaste the path in the explorer, you get the real "program files" name.
It is to be confirmed by other Windows 7,8 10 users.
1- If not present, a precision in rawpedia will be welcome.
2- in rawtherapee, if the exe doesn't exists, there is no warning even in verbose mode.
Is it possible to verify the existence of the exe in the preference window?