New Post: System.NotImplemented exception with RAR files on stream copy

Hi, I'm using your great Library for my Windows Store application.
I'm using the IRachive API to read content of archive files directly in memory (not extracting them to disk) and have encountered a problem:

With rar files, I get a System.NotImplemented exception when calling

streamFromArchiveEntry.CopyToAsync(outMemoryStream)

What I'm doing is simply extract the archive entry in memory so that I can use the entry content directly. This works fine with zip and 7z archives (it is however extremely slow with 7z archive files).

Have you already experienced this issue? Can something be done about it?

Thanks