diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7620b08..ff79fc6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,10 +2,23 @@ list(INSERT CMAKE_MODULE_PATH 0 "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
 cmake_minimum_required(VERSION 3.4.1)
 
+if (WIN32)
+# "'sleep_for' is not a member of 'std::this_thread'" in gcc 4.7/4.8
+add_definitions( "-D_GLIBCXX_USE_NANOSLEEP=1" )
+add_definitions( "-DWIN32_LEAN_AND_MEAN" )
+endif()
+
+#target_compile_options(gmock-matchers_test PRIVATE "-Wa,-mbig-obj")
+
+
 #SET(CMAKE_C_COMPILER /path/to/c/compiler)
 #SET(CMAKE_CXX_COMPILER /path/to/cpp/compiler)
-SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -std=c++14 -F/Library/Frameworks -pthread")
-#SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
+if (WIN32)
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wa,-mbig-obj -O2 -fPIC -std=c++14 -F/Library/Frameworks -pthread -lcrypto -lcrypt32") 
+else()
+  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -std=c++14 -F/Library/Frameworks -pthread")
+endif()
+#SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}-fsanitize=address")
 #SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -std=c++14 -F/Library/Frameworks -pthread -fsanitize=address")    # TODO: way to enable sanitize?  get runtime error with this on
 
 project(MoneroCppLibrary)
@@ -102,12 +115,18 @@ find_package(OpenSSL REQUIRED)
 message(STATUS "Using OpenSSL include dir at ${OPENSSL_INCLUDE_DIR}")
 include_directories(${OPENSSL_INCLUDE_DIR})
 
+
 if(STATIC AND NOT IOS)
   if(UNIX)
     set(OPENSSL_LIBRARIES "${OPENSSL_LIBRARIES};${CMAKE_DL_LIBS};${CMAKE_THREAD_LIBS_INIT}")
   endif()
 endif()
 
+if (WIN32)
+  list(APPEND OPENSSL_LIBRARIES ws2_32 crypt32)
+endif()
+
+
 ############
 # libsodium
 ############
@@ -173,14 +192,26 @@ set_target_properties(epee PROPERTIES IMPORTED_LOCATION
 
 # Unbound
 find_package(Unbound)
-include_directories(${UNBOUND_INCLUDE_DIR})
-if ("${UNBOUND_LIBRARIES}" MATCHES "libunbound")
-  message(STATUS "Using libunbound: ${UNBOUND_LIBRARIES}")
-  add_library(unbound SHARED IMPORTED)
-  set_target_properties(unbound PROPERTIES IMPORTED_LOCATION
-      ${UNBOUND_LIBRARIES})
+
+if(NOT UNBOUND_INCLUDE_DIR)
+  die("Could not find libunbound")
+else()
+  message(STATUS "Found libunbound include (unbound.h) in ${UNBOUND_INCLUDE_DIR}")
+  if(UNBOUND_LIBRARIES)
+    message(STATUS "Found libunbound library")
+    include_directories(${UNBOUND_INCLUDE_DIR})
+    if (WIN32)
+        add_library(unbound STATIC IMPORTED)
+    else()
+        add_library(unbound SHARED IMPORTED)
+    endif()
+    set_target_properties(unbound PROPERTIES IMPORTED_LOCATION ${UNBOUND_LIBRARIES}) 
+  else()
+    die("Found libunbound includes, but could not find libunbound library. Please make sure you have installed libunbound or libunbound-dev or the equivalent")
+  endif()
 endif()
 
+
 add_library(rpc_base STATIC IMPORTED)
 set_target_properties(rpc_base PROPERTIES IMPORTED_LOCATION
     ${MONERO_PROJECT_BUILD}/src/rpc/librpc_base.a)
@@ -371,7 +402,6 @@ if (BUILD_SAMPLE)
         multisig
         version
         randomx
-        dl
         epee
         hardforks
         cncrypto
@@ -385,7 +415,11 @@ if (BUILD_SAMPLE)
         ${SODIUM_LIBRARY}
         ${HIDAPI_LIBRARIES}
         ${EXTRA_LIBRARIES}
+	
     )
+    if (NOT WIN32)
+	target_link_libraries(sample_code dl)
+    endif()
 endif()
 
 ########################
@@ -420,7 +454,6 @@ if (BUILD_SCRATCHPAD)
         multisig
         version
         randomx
-        dl
         epee
         hardforks
         cncrypto
@@ -435,4 +468,8 @@ if (BUILD_SCRATCHPAD)
         ${HIDAPI_LIBRARIES}
         ${EXTRA_LIBRARIES}
     )
+    if (NOT WIN32)
+        target_link_libraries(sample_code dl)
+    endif()
+
 endif()
diff --git a/README.md b/README.md
index e2994b5..499a700 100644
--- a/README.md
+++ b/README.md
@@ -207,6 +207,42 @@ For example, [monero-java](https://github.com/monero-ecosystem/monero-java) comp
 5. Build monero-project to create .a libraries, e.g.: `make release-static -j8`
 6. Link to this library's source files in your application or build as a shared library in ./build/: `cd $MONERO_CPP && ./bin/build_libmonero_cpp.sh`
 
+## Instructions for building libmonero-cpp.dll on Windows
+
+1. Download and install [MSYS2](https://www.msys2.org/).
+2. Press windows button and type ```MSYS2 MINGW64``` for 64 bit systems or ```MSYS2 MINGW32``` for 32 bit.
+3. Update packages:
+    ```pacman -Syu```
+4. Install dependencies
+    For 64 bit
+    ```
+    pacman -S mingw-w64-x86_64-toolchain make mingw-w64-x86_64-cmake mingw-w64-x86_64-boost mingw-w64-x86_64-openssl mingw-w64-x86_64-zeromq mingw-w64-x86_64-libsodium mingw-w64-x86_64-hidapi mingw-w64-x86_64-unbound mingw-w64-x86_64-protobuf git mingw-w64-x86_64-libusb
+    ```
+    For 32 bit
+    ```
+    pacman -S  mingw-w64-i686-toolchain make mingw-w64-i686-cmake mingw-w64-i686-boost mingw-w64-i686-openssl mingw-w64-i686-zeromq mingw-w64-i686-libsodium mingw-w64-i686-hidapi mingw-w64-i686-unbound mingw-w64-i686-protobuf git mingw-w64-i686-libusb
+    ```
+5. Clone repo
+   ```
+   git clone --recurse-submodules https://github.com/monero-ecosystem/monero-cpp.git
+   ```
+6. Update submodules
+   ```
+   cd ./monero-cpp && ./bin/update_submodules.sh
+   ```
+7. ```export MONERO_CPP=path/to/monero-cpp```
+8. ```cd $MONERO_CPP/external/monero-project```
+9. Build monero-project for 64 bit
+   ```
+   make release-static-win64
+   ```
+   or for 32 bit
+   ```
+   make release-static-win32
+   ```
+10. Build as a shared library in ./build/:
+```cd $MONERO_CPP && ./bin/build_libmonero_cpp_dll.sh```
+
 ## Related projects
 
 * [monero-java](https://github.com/monero-ecosystem/monero-java)
@@ -223,4 +259,4 @@ If this library brings you value, please consider donating.
 <p align="center">
 	<img src="donate.png" width="115" height="115"/><br>
 	<code>46FR1GKVqFNQnDiFkH7AuzbUBrGQwz2VdaXTDD4jcjRE8YkkoTYTmZ2Vohsz9gLSqkj5EM6ai9Q7sBoX4FPPYJdGKQQXPVz</code>
-</p>
\ No newline at end of file
+</p>
diff --git a/bin/build_libmonero_cpp_dll.sh b/bin/build_libmonero_cpp_dll.sh
new file mode 100644
index 0000000..2d66571
--- /dev/null
+++ b/bin/build_libmonero_cpp_dll.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+HOST_NCORES=$(nproc 2>/dev/null || shell nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 1)
+
+# build libmonero-cpp shared library
+mkdir -p build && 
+cd build && 
+cmake .. && 
+cmake --build . && 
+make .
diff --git a/src/wallet/monero_wallet_full.cpp b/src/wallet/monero_wallet_full.cpp
index 95262c7..e09f29b 100644
--- a/src/wallet/monero_wallet_full.cpp
+++ b/src/wallet/monero_wallet_full.cpp
@@ -44,7 +44,7 @@
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * strict LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
@@ -52,6 +52,12 @@
 
 #include "monero_wallet_full.h"
 
+#ifdef WIN32_LEAN_AND_MEAN
+#include <boost/locale.hpp>
+#include <boost/filesystem.hpp>
+#include <thread>
+#endif
+
 #include "utils/monero_utils.h"
 #include <chrono>
 #include <iostream>
@@ -62,11 +68,6 @@
 #include "serialization/string.h"
 #include "common/threadpool.h"
 
-#ifdef WIN32
-#include <boost/locale.hpp>
-#include <boost/filesystem.hpp>
-#endif
-
 using namespace tools;
 
 /**
@@ -77,7 +78,7 @@ namespace monero {
   // ------------------------- INITIALIZE CONSTANTS ---------------------------
 
   static const int DEFAULT_CONNECTION_TIMEOUT_MILLIS = 1000 * 30; // default connection timeout 30 sec
-  static const bool STRICT = false; // relies exclusively on blockchain data if true, includes local wallet data if false TODO: good use case to expose externally?
+  static const bool strict = false; // relies exclusively on blockchain data if true, includes local wallet data if false TODO: good use case to expose externally?
 
   // ----------------------- INTERNAL PRIVATE HELPERS -----------------------
 
@@ -1589,29 +1590,29 @@ namespace monero {
   // isMultisigImportNeeded
 
   uint64_t monero_wallet_full::get_balance() const {
-    return m_w2->balance_all(STRICT);
+    return m_w2->balance_all(strict);
   }
 
   uint64_t monero_wallet_full::get_balance(uint32_t account_idx) const {
-    return m_w2->balance(account_idx, STRICT);
+    return m_w2->balance(account_idx, strict);
   }
 
   uint64_t monero_wallet_full::get_balance(uint32_t account_idx, uint32_t subaddress_idx) const {
-    std::map<uint32_t, uint64_t> balance_per_subaddress = m_w2->balance_per_subaddress(account_idx, STRICT);
+    std::map<uint32_t, uint64_t> balance_per_subaddress = m_w2->balance_per_subaddress(account_idx, strict);
     auto iter = balance_per_subaddress.find(subaddress_idx);
     return iter == balance_per_subaddress.end() ? 0 : iter->second;
   }
 
   uint64_t monero_wallet_full::get_unlocked_balance() const {
-    return m_w2->unlocked_balance_all(STRICT);
+    return m_w2->unlocked_balance_all(strict);
   }
 
   uint64_t monero_wallet_full::get_unlocked_balance(uint32_t account_idx) const {
-    return m_w2->unlocked_balance(account_idx, STRICT);
+    return m_w2->unlocked_balance(account_idx, strict);
   }
 
   uint64_t monero_wallet_full::get_unlocked_balance(uint32_t account_idx, uint32_t subaddress_idx) const {
-    std::map<uint32_t, std::pair<uint64_t, std::pair<uint64_t, uint64_t>>> unlocked_balance_per_subaddress = m_w2->unlocked_balance_per_subaddress(account_idx, STRICT);
+    std::map<uint32_t, std::pair<uint64_t, std::pair<uint64_t, uint64_t>>> unlocked_balance_per_subaddress = m_w2->unlocked_balance_per_subaddress(account_idx, strict);
     auto iter = unlocked_balance_per_subaddress.find(subaddress_idx);
     return iter == unlocked_balance_per_subaddress.end() ? 0 : iter->second.first;
   }
@@ -1629,8 +1630,8 @@ namespace monero {
       monero_account account;
       account.m_index = account_idx;
       account.m_primary_address = get_address(account_idx, 0);
-      account.m_balance = m_w2->balance(account_idx, STRICT);
-      account.m_unlocked_balance = m_w2->unlocked_balance(account_idx, STRICT);
+      account.m_balance = m_w2->balance(account_idx, strict);
+      account.m_unlocked_balance = m_w2->unlocked_balance(account_idx, strict);
       if (include_subaddresses) account.m_subaddresses = get_subaddresses_aux(account_idx, std::vector<uint32_t>(), transfers);
       accounts.push_back(account);
     }
@@ -1649,8 +1650,8 @@ namespace monero {
     monero_account account;
     account.m_index = account_idx;
     account.m_primary_address = get_address(account_idx, 0);
-    account.m_balance = m_w2->balance(account_idx, STRICT);
-    account.m_unlocked_balance = m_w2->unlocked_balance(account_idx, STRICT);
+    account.m_balance = m_w2->balance(account_idx, strict);
+    account.m_unlocked_balance = m_w2->unlocked_balance(account_idx, strict);
     if (include_subaddresses) account.m_subaddresses = get_subaddresses_aux(account_idx, std::vector<uint32_t>(), transfers);
     return account;
   }
@@ -3696,8 +3697,8 @@ namespace monero {
     std::vector<monero_subaddress> subaddresses;
 
     // get balances per subaddress as maps
-    std::map<uint32_t, uint64_t> balance_per_subaddress = m_w2->balance_per_subaddress(account_idx, STRICT);
-    std::map<uint32_t, std::pair<uint64_t, std::pair<uint64_t, uint64_t>>> unlocked_balance_per_subaddress = m_w2->unlocked_balance_per_subaddress(account_idx, STRICT);
+    std::map<uint32_t, uint64_t> balance_per_subaddress = m_w2->balance_per_subaddress(account_idx, strict);
+    std::map<uint32_t, std::pair<uint64_t, std::pair<uint64_t, uint64_t>>> unlocked_balance_per_subaddress = m_w2->unlocked_balance_per_subaddress(account_idx, strict);
 
     // get all indices if no indices given
     std::vector<uint32_t> subaddress_indices_req;