Hi Sven, In WebUtils one can decode an URL this way ( WebUtils decodeUrlEncodedForm: 'http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi%3Fdb%3Dnuccore%26t...' ) keys anyOne resulting in 'http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=nuccore&term=science[journal]+AND+breast+cancer+AND+2009[pdat]' In Zinc-HTTP I didn't find a method for decoding an encoded HTTP address: ( ZnUrl fromString: 'http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi%3Fdb%3Dnuccore%26t...' ) .... ? but there is #unescapePercents in Network package (by the way if it's the opposite of #encodeForHTTP shouldn't be #decodeFromHTTP ?) 'http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi%3Fdb%3Dnuccore%26t...' unescapePercents 'http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?db=nuccore&term=science[journal]+AND+breast+cancer+AND+2009[pdat]' but I want to maximize package dependency and not system dependency. Is there a way to decode url's in Zinc-HTTP without use #unescapePercents ? Cheers, -- Hernán Morales Information Technology Manager, Institute of Veterinary Genetics. National Scientific and Technical Research Council (CONICET). La Plata (1900), Buenos Aires, Argentina. Telephone: +54 (0221) 421-1799. Internal: 422 Fax: 425-7980 or 421-1799.