EnableExplicit Define lpszUrl$ = "http://www.domain.de/folder with space/file_äöü.dat" Define lpszBuffer$ = Space(1024) Define lpdwBufferLength = Len(lpszBuffer$) #ICU_BROWSER_MODE = $2000000 #ICU_DECODE = $10000000 #ICU_ENCODE_PERCENT = $1000 #ICU_ENCODE_SPACES_ONLY = $4000000 #ICU_NO_ENCODE = $20000000 #ICU_NO_META = $8000000 InternetCanonicalizeUrl_(@lpszUrl$, @lpszBuffer$, @lpdwBufferLength, #ICU_BROWSER_MODE) Debug lpszBuffer$