diff --git a/CMakeLists.txt b/CMakeLists.txt
index 62a920d3a7..b1b5d82f53 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1751,13 +1751,15 @@ if(WIN32)
 		WORKING_DIRECTORY "${GLIB2_DLL_DIR}"
 	)
 
-	# Optional DLLs.
+	# Optional DLLs and PDBs.
 	set (OPTIONAL_DLLS)
+	set (OPTIONAL_PDBS)
 	if (AIRPCAP_FOUND)
 		list (APPEND OPTIONAL_DLLS "${AIRPCAP_DLL_DIR}/${AIRPCAP_DLL}")
 	endif(AIRPCAP_FOUND)
 	if (CARES_FOUND)
 		list (APPEND OPTIONAL_DLLS "${CARES_DLL_DIR}/${CARES_DLL}")
+		list (APPEND OPTIONAL_PDBS "${CARES_DLL_DIR}/${CARES_PDB}")
 	endif(CARES_FOUND)
 	if (MAXMINDDB_FOUND)
 		list (APPEND OPTIONAL_DLLS "${MAXMINDDB_DLL_DIR}/${MAXMINDDB_DLL}")
@@ -1855,6 +1857,15 @@ if(WIN32)
 		install(FILES ${OPTIONAL_DLLS} DESTINATION "${CMAKE_INSTALL_BINDIR}")
 	endif(OPTIONAL_DLLS)
 
+	if (OPTIONAL_PDBS)
+		add_custom_command(TARGET copy_cli_dlls PRE_BUILD
+			COMMAND ${CMAKE_COMMAND} -E copy_if_different
+				${OPTIONAL_PDBS}
+				"${_dll_output_dir}"
+			VERBATIM
+		)
+	endif(OPTIONAL_PDBS)
+
 	add_dependencies(epan copy_cli_dlls)
 
 	# We have a lot of choices for creating zip archives:
diff --git a/cmake/modules/FindCARES.cmake b/cmake/modules/FindCARES.cmake
index 2725a61d44..e3794a9bb6 100644
--- a/cmake/modules/FindCARES.cmake
+++ b/cmake/modules/FindCARES.cmake
@@ -45,13 +45,18 @@ IF(CARES_FOUND)
       CACHE PATH "Path to C-Ares DLL"
     )
     file( GLOB _cares_dll RELATIVE "${CARES_DLL_DIR}"
-      "${CARES_DLL_DIR}/libcares-*.dll"
+      "${CARES_DLL_DIR}/cares.dll"
     )
     set ( CARES_DLL ${_cares_dll}
-      # We're storing filenames only. Should we use STRING instead?
       CACHE FILEPATH "C-Ares DLL file name"
     )
-    mark_as_advanced( CARES_DLL_DIR CARES_DLL )
+    file( GLOB _cares_pdb RELATIVE "${CARES_DLL_DIR}"
+      "${CARES_DLL_DIR}/cares.pdb"
+    )
+    set ( CARES_PDB ${_cares_pdb}
+      CACHE FILEPATH "C-Ares PDB file name"
+    )
+    mark_as_advanced( CARES_DLL_DIR CARES_DLL CARES_PDB )
   endif()
 ELSE(CARES_FOUND)
   SET( CARES_LIBRARIES )
diff --git a/cmake/modules/FindWSWinLibs.cmake b/cmake/modules/FindWSWinLibs.cmake
index 05e53b0117..ce4bceba7f 100644
--- a/cmake/modules/FindWSWinLibs.cmake
+++ b/cmake/modules/FindWSWinLibs.cmake
@@ -23,7 +23,12 @@ function( FindWSWinLibs _WS_LIB_SEARCH_PATH _LIB_HINT_VAR )
     foreach( _DIR ${_SUBDIR} )
       if( IS_DIRECTORY ${_DIR} )
         if( "${_DIR}" MATCHES ".*/${_WS_LIB_SEARCH_PATH}" )
-          set( ${_LIB_HINT_VAR} ${_DIR} PARENT_SCOPE )
+          set(_vcpkg_dir "${_DIR}/installed/$ENV{PLATFORM}-windows")
+          if( IS_DIRECTORY "${_vcpkg_dir}")
+            set( ${_LIB_HINT_VAR} ${_vcpkg_dir} PARENT_SCOPE )
+          else()
+            set( ${_LIB_HINT_VAR} ${_DIR} PARENT_SCOPE )
+          endif()
         endif()
       endif()
     endforeach()
diff --git a/tools/win-setup.ps1 b/tools/win-setup.ps1
index 4de31545c0..06c80ffa3d 100644
--- a/tools/win-setup.ps1
+++ b/tools/win-setup.ps1
@@ -69,14 +69,14 @@ Param(
 # trouble instead of trying to catch exceptions everywhere.
 $ErrorActionPreference = "Stop"
 
-$Win64CurrentTag = "2019-01-02"
-$Win32CurrentTag = "2019-01-02"
+$Win64CurrentTag = "2019-01-04"
+$Win32CurrentTag = "2019-01-04"
 
 # Archive file / SHA256
 $Win64Archives = @{
     "AirPcap_Devpack_4_1_0_1622.zip" = "09d637f28a79b1d2ecb09f35436271a90c0f69bd0a1ee82b803abaaf63c18a69";
     "bcg729-1.0.4-win64ws.zip" = "9a095fda4c39860d96f0c568830faa6651cd17635f68e27aa6de46c689aa0ee2";
-    "c-ares-1.14.0-win64ws.zip" = "91b1e1460bda513375910977a3410afd024575eebc528adecf3abea7814c0ef1";
+    "c-ares-1.15.0-win64ws.zip" = "ade864fd08e887d353a9c939fa6e68b0bf3e08761b6e81f60ce15e6543256552";
     "gnutls-3.6.3-1-win64ws.zip" = "994ac2578e7b4ca01e589ab2598927d53f7370bc3ff679f3006b0e6bb7a06df4";
     "glib2-2.52.2-1.31-win64ws.zip" = "e19a7812db6715c632a5bbf96452ab474a4eaf0c6aaee999323ac7beb7ebe6db";
     "kfw-3-2-2-x64-ws.zip" = "91654ffe0b6d418b369c95bc060414a90f91627e55c19a3e753803c9deb2fe9a";
@@ -99,7 +99,7 @@ $Win64Archives = @{
 $Win32Archives = @{
     "AirPcap_Devpack_4_1_0_1622.zip" = "09d637f28a79b1d2ecb09f35436271a90c0f69bd0a1ee82b803abaaf63c18a69";
     "bcg729-1.0.4-win32ws.zip" = "b785ec78dec6bca8252130eb884bfa28c1140001dd7369a535579176de9e4271";
-    "c-ares-1.14.0-win32ws.zip" = "7355f3ad6d6ec05541c59e5b398b8dbd9a41bf6776b26d9656d8d54ecd58178e";
+    "c-ares-1.15.0-win32ws.zip" = "a54151203a631b478470aaa21b3a1fde6178f2fea9f15a1a6da4bfcecc92cfcd";
     "gnutls-3.6.3-1-win32ws.zip" = "42d8313ffb888f525d6c39330c39bcc2182e68ee8433a09dd85e1f1e1474f592";
     "glib2-2.52.2-1.34-win32ws.zip" = "28c426a7b64c1cd5b058c2f25685ddfaebca29083bd8f94fec2a8910ece6faf0";
     "kfw-3-2-2-i386-ws-vc6.zip" = "527deb2cf1c3ba0cf743f2b9b8011a22096b54f7ce62fc7ba31b520bbac0e802";