Set RUNTIME DESTINATION, for Windows.
From David Demelier.

THANKS

diff --git a/THANKS b/THANKS
index 257999c..9022a42 100644
--- a/THANKS
+++ b/THANKS
@@ -13,6 +13,7 @@
 Chris Nehren <cnehren+libzip@pobox.com>
 Coverity <info@coverity.com>
 Dane Springmeyer <dane.springmeyer@gmail.com>
+David Demelier
 Del Merritt <del@alum.mit.edu>
 Dmytro Rybachenko <atmoliton@gmail.com>
 François Simon <AT.GFI.Francois.SIMON@sesam-vitale.fr>

lib/CMakeLists.txt

diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 785994f..e9eda2e 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -175,6 +175,7 @@
 SET_TARGET_PROPERTIES(zip PROPERTIES VERSION 3.0 SOVERSION 3 )
 TARGET_LINK_LIBRARIES(zip ${ZLIB_LIBRARY})
 INSTALL(TARGETS zip
+  RUNTIME DESTINATION bin
   ARCHIVE DESTINATION lib
   LIBRARY DESTINATION lib)
 #CREATE_LIBTOOL_FILE(zip lib)