diff --git a/win32/errno-win32-extend.h b/win32/errno-win32-extend.h
new file mode 100755
index 0000000..435abba
--- /dev/null
+++ b/win32/errno-win32-extend.h
@@ -0,0 +1,5 @@
+#undef EINPROGRESS
+#undef EALREADY
+
+#define EINPROGRESS  WSAEINPROGRESS
+#define EALREADY     WSAEALREADY
diff --git a/win32/structs-for-win32.h b/win32/structs-for-win32.h
new file mode 100755
index 0000000..97cd917
--- /dev/null
+++ b/win32/structs-for-win32.h
@@ -0,0 +1,88 @@
+
+//structs-for-win32.h
+
+#define IFNAMSIZ         16
+//#define SIZE_INTERFACES	100
+
+
+struct ifmap
+  {
+    unsigned long int mem_start;
+    unsigned long int mem_end;
+    unsigned short int base_addr;
+    unsigned char irq;
+    unsigned char dma;
+    unsigned char port;
+    /* 3 bytes spare */
+  };
+
+struct ifreq 
+  {
+   char ifr_name[IFNAMSIZ]; /* Interface name */
+   union {
+       struct sockaddr ifr_addr;
+       struct sockaddr ifr_dstaddr;
+       struct sockaddr ifr_broadaddr;
+       struct sockaddr ifr_netmask;
+       struct sockaddr ifr_hwaddr;
+       short	       ifr_flags;
+       int	       ifr_ifindex;
+       int	       ifr_metric;
+       int	       ifr_mtu;
+       struct ifmap    ifr_map;
+       char	       ifr_slave[IFNAMSIZ];
+       char	       ifr_newname[IFNAMSIZ];
+       char *	       ifr_data;
+   };
+  };
+
+struct ifconf 
+  {
+   int		      ifc_len; /* size of buffer */
+   union {
+       char *	      ifc_buf; /* buffer address */
+       struct ifreq * ifc_req; /* array of structures */
+   };
+  };
+#define  SIOCGIFCONF SIO_GET_INTERFACE_LIST
+#define  SIOCGIFFLAGS SIO_GET_INTERFACE_LIST
+
+typedef unsigned short int	uint16_t;
+typedef unsigned int uint32_t;
+typedef unsigned short u_int16_t;
+typedef unsigned int   u_int32_t;
+
+
+// arpa/nameser.h
+#define QFIXEDSZ       4               /* #/bytes of fixed data in query */
+#define C_IN          1                /* the arpa internet */
+#define T_SRV          33              /* Server selection */
+
+
+typedef struct {
+    unsigned  id :16;          /* query identification number */
+
+    /* fields in third byte */
+    unsigned  rd :1;           /* recursion desired */
+    unsigned  tc :1;           /* truncated message */
+    unsigned  aa :1;           /* authoritative answer */
+    unsigned  opcode :4;       /* purpose of message */
+    unsigned  qr :1;           /* response flag */
+    
+    /* fields in fourth byte */
+    unsigned  rcode :4;        /* response code */
+    unsigned  cd: 1;           /* checking disabled by resolver */
+    unsigned  ad: 1;           /* authentic data from named */
+    unsigned  unused :1;       /* unused bits (MBZ as of 4.9.3a3) */
+    unsigned  ra :1;           /* recursion available */
+    
+    /* remaining bytes */
+    unsigned  qdcount :16;     /* number of question entries */
+    unsigned  ancount :16;     /* number of answer entries */
+    unsigned  nscount :16;     /* number of authority entries */
+    unsigned  arcount :16;     /* number of resource entries */
+} HEADER;
+
+// Bad hack: can't find these on windows
+#define EAI_OVERFLOW -1
+#define EAI_SYSTEM -2