[NTG-context] Unicode chars and \insertpages (Win7)

Dear list, I have the following sample: \startext \insertpages[ξ_file.pdf] \stoptext Using latest on Linux, it works perfectly fine. On Windows (I’m still on Win7), it doesn’t work unless I replace "ξ" with an ASCII character. Could this be fixed or is it really a limiatation of Windows? Many thanks for your help, Pablo -- http://www.ousia.tk