I just tested httpexampleclient from Symbian7.0_Series60_2.0 SDK and found there is no support of caching(read Etag to judge whether local complete file is re-useable) and resume(use header "Range" and "Content-Range" to download from the point by the last time)

I can not find a way to enable these 2 features, does that mean I have to implement these 2 features on the scratch?

Thank you for your help!