64-bit MSVC projects ?

Hi there - I'm hoping this'll be the mailing list for programming help 
with libpng....

Many years ago I built libpng for Win32 using MSVC.  I now need to build 
for Win64 but because it's such a long time since my last build, I 
downloaded the latest code today (not sure which version it is but the 
zip file is called "lpng1637.zip" if that helps).

But... it still seems to contain only 32-bit MSVC projects.  Are there 
any 64-bit projects available?

Thanks,  John