diff --git a/src/compat.h b/src/compat.h
index 8fd0dd1..8683371 100644
--- a/src/compat.h
+++ b/src/compat.h
@@ -25,12 +25,13 @@
 #include <ifaddrs.h>
 #endif
 
-typedef u_int SOCKET;
+
 #ifdef WIN32
 #define MSG_NOSIGNAL        0
 #define MSG_DONTWAIT        0
 typedef int socklen_t;
 #else
+typedef u_int SOCKET;
 #include "errno.h"
 #define WSAGetLastError()   errno
 #define WSAEINVAL           EINVAL
diff --git a/src/init.cpp b/src/init.cpp
index 10dd989..d97241e 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -478,7 +478,7 @@ bool AppInit2()
         }
         if (pid > 0)
         {
-            CreatePidFile(GetPidFile(), pid);
+	    CreatePidFile(GetPidFile(), pid);
             return true;
         }
 
diff --git a/src/main.cpp b/src/main.cpp
index e45f489..eff4698 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -11,6 +11,7 @@
 #include "ui_interface.h"
 #include "kernel.h"
 #include "wallet.h"
+#include "util.h"
 #include <boost/algorithm/string/replace.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/fstream.hpp>
@@ -4537,9 +4538,9 @@ void curecoinMiner(CWallet *pwallet, bool fProofOfStake)
                 }
                 strMintWarning = "";
                 printf("CPUMiner : proof-of-stake block found %s\n", pblock->GetHash().ToString().c_str());
-                SetThreadPriority(THREAD_PRIORITY_NORMAL);
+		SetThreadPriority(THREAD_PRIORITY_NORMAL);
                 CheckWork(pblock.get(), *pwalletMain, reservekey);
-                SetThreadPriority(THREAD_PRIORITY_LOWEST);
+		SetThreadPriority(THREAD_PRIORITY_LOWEST);
             }
             Sleep(500);
             continue;
@@ -4589,9 +4590,9 @@ void curecoinMiner(CWallet *pwallet, bool fProofOfStake)
                     pblock->nNonce = ByteReverse(nNonceFound);
                     assert(hash == pblock->GetHash());
 
-                    SetThreadPriority(THREAD_PRIORITY_NORMAL);
+		    SetThreadPriority(THREAD_PRIORITY_NORMAL);
                     CheckWork(pblock.get(), *pwalletMain, reservekey);
-                    SetThreadPriority(THREAD_PRIORITY_LOWEST);
+		    SetThreadPriority(THREAD_PRIORITY_LOWEST);
                     break;
                 }
             }
diff --git a/src/net.cpp b/src/net.cpp
index a96e7fb..3a7d78f 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1738,14 +1738,17 @@ bool BindListenPort(const CService &addrBind, std::string& strError)
     // some systems don't have IPV6_V6ONLY but are always v6only; others do have the option
     // and enable it by default or not. Try to enable it, if possible.
     if (addrBind.IsIPv6()) {
+#ifndef WIN32
 #ifdef IPV6_V6ONLY
         setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&nOne, sizeof(int));
 #endif
-#ifdef WIN32
+#else
         int nProtLevel = 10 /* PROTECTION_LEVEL_UNRESTRICTED */;
         int nParameterId = 23 /* IPV6_PROTECTION_LEVEl */;
         // this call is allowed to fail
+#ifdef IPV6_V6ONLY
         setsockopt(hListenSocket, IPPROTO_IPV6, nParameterId, (const char*)&nProtLevel, sizeof(int));
+#endif
 #endif
     }
 #endif
diff --git a/src/util.cpp b/src/util.cpp
index 0b086b3..f0f5a81 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -67,7 +67,6 @@ namespace boost {
 #endif
 
 
-
 std::map<std::string, std::string> mapArgs;
 std::map<std::string, std::vector<std::string> > mapMultiArgs;
 bool fDebug = false;
@@ -1114,6 +1113,17 @@ boost::filesystem::path GetPidFile()
     return pathPidFile;
 }
 
+#ifdef WIN32
+void CreatePidFile(const boost::filesystem::path &path, util_pid_t pid)
+{
+    FILE* file = fopen(path.string().c_str(), "w");
+    if (file)
+    {
+        fprintf(file, "%d\n", pid);
+        fclose(file);
+    }
+}
+#else
 void CreatePidFile(const boost::filesystem::path &path, pid_t pid)
 {
     FILE* file = fopen(path.string().c_str(), "w");
@@ -1123,6 +1133,7 @@ void CreatePidFile(const boost::filesystem::path &path, pid_t pid)
         fclose(file);
     }
 }
+#endif
 
 bool RenameOver(boost::filesystem::path src, boost::filesystem::path dest)
 {
diff --git a/src/util.h b/src/util.h
index aab2ccf..c88dfcd 100644
--- a/src/util.h
+++ b/src/util.h
@@ -7,16 +7,18 @@
 
 #include "uint256.h"
 
+#include <map>
+#include <vector>
+#include <string>
+
 #ifndef WIN32
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/resource.h>
 #else
-typedef int pid_t; /* define for Windows compatibility */
+#include <processthreadsapi.h>
+typedef int util_pid_t; /* define for Windows compatibility */
 #endif
-#include <map>
-#include <vector>
-#include <string>
 
 #include <boost/thread.hpp>
 #include <boost/filesystem.hpp>
@@ -29,6 +31,7 @@ typedef int pid_t; /* define for Windows compatibility */
 
 #include "netbase.h" // for AddTimeData
 
+
 typedef long long  int64;
 typedef unsigned long long  uint64;
 
@@ -215,7 +218,11 @@ boost::filesystem::path GetDefaultDataDir();
 const boost::filesystem::path &GetDataDir(bool fNetSpecific = true);
 boost::filesystem::path GetConfigFile();
 boost::filesystem::path GetPidFile();
+#ifdef WIN32
+void CreatePidFile(const boost::filesystem::path &path, util_pid_t pid);
+#else
 void CreatePidFile(const boost::filesystem::path &path, pid_t pid);
+#endif
 void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
 #ifdef WIN32
 boost::filesystem::path GetSpecialFolderPath(int nFolder, bool fCreate = true);
@@ -591,7 +598,7 @@ bool NewThread(void(*pfn)(void*), void* parg);
 #ifdef WIN32
 inline void SetThreadPriority(int nPriority)
 {
-    SetThreadPriority(GetCurrentThread(), nPriority);
+  SetThreadPriority(GetCurrentThread(), nPriority);
 }
 #else