CMake error in Windows 8

[spidey1170]

@KLS

Thank you; I tried the cl /? and received the following:

Microsoft (R) C/C++ Optimizing Compiler Version 17.00.50727.1 for x86
Copyright (C) Microsoft Corporation.  All rights reserved.
...

I started cmake-gui from the command line and it opened. I then tried to configure again and receive the same error. I hit configure a second time and a pop-up appeared:

Error in configuration process, project files may be invalid

The second time I hit the Configure button, this is what I received in the message window:

The C compiler identification is unknown
The CXX compiler identification is unknown
CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:97 (message):
  Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR)
Call Stack (most recent call first):
  C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:291 (_FPHSA_FAILURE_MESSAGE)
  C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/FindZLIB.cmake:85 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  CMakeLists.txt:139 (FIND_PACKAGE)


Configuring incomplete, errors occurred!

EDIT: I forgot to add that I'm very familiar with bash CL and somewhat familiar with Windows, if that helps =)