Word Find and Replace ZERO-WIDTH-SPACE (ZWSP, U+200B)

Solution 1:

Zero-width spaces (U+200B) are referred to in Word's Find (but not Replace) as ^u8203, which is easier than getting it from CharMap (though for Replace I know no other way).

Actually, zero-width spaces inserted by Word 2003 and 2007 Insert Symbol are U+200C (^u8204 in Find), not U+200B. In Windows XP (where I use Word 2003), CharMap can't even find U+200B. Windows 7 CharMap describes U+200B as "Zero Width Space" and U+200C as "Zero Width Non-Joiner". Word 2007 uses the latter, same as 2003. Both characters seem to do the job.

This article has some more info: How to make URLs wordwrap in Word.