I discovered while doing a private build for a user that msvc/include/exv_msvc.h still contains the #pragma comment code.
I've removed that (again!) and fixed a consequential link error on exiv2lib.vcproj DebugDLL | ReleaseDLL
Rebuilt everything on VS2003/5/8 and all run the runner.bat test OK.
1) exv_msvc.h moved to msvc/include/exv_msvc.h
2) exv_msvc.h no longer has #pragma comment statements to link zlib
3) project files updated to explicitly link appropriate zlib library