Hi I discovered this protocol in String hierarchy. Are you familiar with it? The method comment of #fromPacked: is: "Convert from a longinteger to a String of length 4." The only sender in Pharo 2.0 is MethodFinder. For WideString, it does not work. In examples: ByteString fromPacked: 'text' asPacked. ---> 'text' ByteString fromPacked: 'martin' asPacked. ---> 'rtin' WideString fromPacked: ('text' asWideString asPacked). ---> error WideString>>asPacked can be easily fixed adding an explicit return to the calculation (it's now implicitly returning self). But... it only encodes one letter: WideString fromPacked: 'martin' asWideString asPacked ---> 'n' I checked that in Squeak 4.3 there are not senders too. So... Should we fix the WideString implementation, or directly remove this protocol? Martin