Control Characters in Display Names

I've been having problems caused by Interplay assets which have control characters (values < 32) in their display names.

If I try to GetChildren for a folder containing such an asset, the request fails because the returned XML contains the bare control characters, rather than in the escaped form required by the XML standard, eg "&#x0004;".

I'm using the Axis2 SOAP package, and it's the XML parser in this package that croaks. Is it possible that maybe gSOAP or some other package is more lenient in this regard?

I'm using version 2.5 of the WS. Any help appreciated!