Questions about shares in Ubuntu / Linux on Windows

I recently brought up Linux on Windows. I chose the Ubuntu distribution.

It works well. Really well. Really fast.

But there are a few shortcomings. I hope this is the right forum for these questions ...

1. It cannot see remote shares. I mount a laptop share as Z: so I should be able to see it in Linux bash as /mnt/z
But no. I can only see the local drives C: and D: as /mnt/c and /mnt/d
Is there a fix?

2. I'd like to write and build C-language programs in Linux, much the same as I did with Cygwin for many years.
But I don't see the Windows header files and libraries needed for making calls to Windows core functions.
Is there a way?

Bingo! That fixed the /mnt drive problem. Thanks.

I think the second issue will be a bit more difficult ...

I'd like to write and build C-language programs in Linux, much the same as I did with Cygwin for many years.
But I don't see the Windows header files and libraries needed for making calls to Windows core functions.
Is there a way?

Thanks. I wonder ... is it possible to do such development without using Visual Studio?
I'm looking for something simple.

In Cygwin I just do "make program-name" and done. Using Linux on Windows that works, too.

But when I try to make use of Windows-only functions (ones that are not part of the C/C++ core libraries) the compiler can't find the functions.
I can alias them with "extern". But that's inadequate because the link loader cannot find the libraries where those functions reside.
Stuck.