diff --git a/src/misc.c.old b/src/misc.c
index 7081f12..cd0e225 100644
--- a/src/misc.c.old
+++ b/src/misc.c
@@ -221,6 +221,8 @@ int ssh_is_ipaddr_v4(const char *str)
     return 0;
 }
 
+typedef NET_IFINDEX (NETIOAPI_API_ *if_nametoindex_t)(PCSTR);
+
 int ssh_is_ipaddr(const char *str)
 {
     int rc = SOCKET_ERROR;
@@ -233,10 +235,13 @@ int ssh_is_ipaddr(const char *str)
         struct sockaddr_storage ss;
         int sslen = sizeof(ss);
         char *network_interface = strchr(s, '%');
+		HINSTANCE hIPHLPAPI = LoadLibrary("IPHLPAPI"); 
+		if_nametoindex_t h_if_nametoindex = (if_nametoindex_t)GetProcAddress(hIPHLPAPI, "if_nametoindex");
+
 
         /* link-local (IP:v6:addr%ifname). */
-        if (network_interface != NULL) {
-            rc = if_nametoindex(network_interface + 1);
+        if (network_interface != NULL && h_if_nametoindex != NULL) {
+            rc = h_if_nametoindex(network_interface + 1);
             if (rc == 0) {
                 free(s);
                 return 0;