diff --git a/Win32/Src/getaddrinfo.c b/Win32/Src/getaddrinfo.c
index 8e8ad85..ebfe8c2 100644
--- a/Win32/Src/getaddrinfo.c
+++ b/Win32/Src/getaddrinfo.c
@@ -45,6 +45,12 @@
  *   in ai_flags?
  */
 
+/*
+ * Mingw64 has its own implementation of getaddrinfo, mingw32 no
+ */
+#ifndef __MINGW64__
+ 
+
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif 
@@ -85,7 +91,7 @@ static const char rcsid[] _U_ =
 #ifdef NEED_ADDRINFO_H
 #include "addrinfo.h"
 #ifdef WIN32
-#include "IP6_misc.h"
+#include "ip6_misc.h"
 #endif
 #endif
 
@@ -1118,3 +1124,6 @@ find_afd(af)
 	}
 	return NULL;
 }
+
+
+#endif /*__MING64__*/
diff --git a/gencode.c b/gencode.c
index f66492e..b94ea72 100644
--- a/gencode.c
+++ b/gencode.c
@@ -47,7 +47,7 @@ static const char rcsid[] _U_ =
  * XXX - why was this included even on UNIX?
  */
 #ifdef __MINGW32__
-#include "IP6_misc.h"
+#include "ip6_misc.h"
 #endif
 
 #ifndef WIN32
diff --git a/inet.c b/inet.c
index 178eb81..5bdae11 100644
--- a/inet.c
+++ b/inet.c
@@ -878,8 +878,10 @@ pcap_lookupdev(errbuf)
 		 */
 		while(NAdapts--)
 		{
-			strcpy((char*)tUstr, tAstr);
-			(char*)tUstr += strlen(tAstr) + 1;;
+			char* tmp = (char*)tUstr;
+			strcpy(tmp, tAstr);
+			tmp += strlen(tAstr) + 1;
+			tUstr = (WCHAR*)tmp;
 			tAstr += strlen(tAstr) + 1;
 		}
 
diff --git a/pcap-win32.c b/pcap-win32.c
index 0e2201e..0e11ed5 100644
--- a/pcap-win32.c
+++ b/pcap-win32.c
@@ -39,7 +39,12 @@ static const char rcsid[] _U_ =
 #include <pcap-int.h>
 #include <Packet32.h>
 #ifdef __MINGW32__
-#include <ddk/ndis.h>
+#ifdef __MINGW64__
+#include <ntddndis.h>
+#else  /*__MINGW64__*/
+#include <ddk/ntddndis.h>
+#include <ndis.h>
+#endif /*__MINGW64__*/
 #else /*__MINGW32__*/
 #include <ntddndis.h>
 #endif /*__MINGW32__*/
diff --git a/pcap.c b/pcap.c
index 4b64a38..91a62e4 100644
--- a/pcap.c
+++ b/pcap.c
@@ -57,7 +57,7 @@ static const char rcsid[] _U_ =
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#if !defined(_MSC_VER) && !defined(__BORLANDC__)
+#if !defined(_MSC_VER) && !defined(__BORLANDC__) && !defined(__MINGW32__)
 #include <unistd.h>
 #endif
 #include <fcntl.h>
diff --git a/scanner.l b/scanner.l
index a061a7e..c8e2d20 100644
--- a/scanner.l
+++ b/scanner.l
@@ -54,7 +54,7 @@ static const char rcsid[] _U_ =
 #include <pcap-stdinc.h>
 
 #ifdef __MINGW32__
-#include "IP6_misc.h"
+#include "ip6_misc.h"
 #endif
 #else /* WIN32 */
 #include <sys/socket.h>	/* for "struct sockaddr" in "struct addrinfo" */