If you want to go back to a free version without this "bug", go on the page below, and follow the light green instructions (there are some lines in English in the middle of the French ones) to get Yahoo! Desktop Search version 1.2 Build 1852je, which is almost identical to X1 Version 5.2.3 (Build 1852bz-bs)(Released Friday, August 26, 2005).
That is to my knowledge one of the best free Desktop Search, and it has no problem with diacritics.
http://snipurl.com/2iuez
That is to my knowledge one of the best free Desktop Search, and it has no problem with diacritics.
http://snipurl.com/2iuez