1)   PopChar Win 2.1
PopChar is an invaluable utility that lets you insert special characters, accented and foreign letters etc. into any document. No need to search for or remember complex keystrokes. Unicode fonts are neatly arranged in the standard Unicode categories.
Character Map, special characters, umlauts, foreign characters, Unicode, HTML,

 2)   FilenameToFTP 1.20
renames files and folders for a next-coming FTP-upload that way, that it replaces invalid characters with an underscore "_". German special character as ä, ö, ü, ß will be replaced with "ae", "oe", "ue" and "ss". The filename will be lowercased.
ftp, upload, file, filename, renaming, umbennen, date, umlaute, umlauts, lower,