Cannot view a PDF in Adobe Reader 6

EXE available at https://www.dropbox.com/s/c24c7pv83vrs4wh/AdbeRdr60_enu.exe

VirtualBox 4.2.12, ReactOS 0.3.15RC2

If a PDF file is double-clicked, Reader splash screen appears for a while, then it terminates.

If PDF is opened from running Reader, app starts to loop this:
WARNING: RtlCompactHeap at C:/Users/Z98/workspace/reactos/0.3.15/lib/rtl/heap.c:2964 is UNIMPLEMENTED!

Attaching log with first-chance exceptions enabled for double-clicking PDF file.