IWFileUploader issue with text that contains apostrophes

[Mikhael]

Hello,

I have a problem with the IWFileUploader when I change one of the fields of TextStrings with a text that contains an apostrophe.
eg: IWFileUploader6->TextStrings->MultipleFileDropNotAllowedText = "Qu'un seul fichier !";
I still get an hourglass, the page comes up but becomes unresponsive.
I tried with \' and other combinations, but it doesn't work.
This happens when changing in the IDE or programmatically.
How to solve this?
Thanks in advance.