diff --git a/virtualsmartcard/src/vpcd/ifd.c b/virtualsmartcard/src/vpcd/ifd.c
index 657ba67..47db51d 100644
--- a/virtualsmartcard/src/vpcd/ifd.c
+++ b/virtualsmartcard/src/vpcd/ifd.c
@@ -11,16 +11,23 @@
  * List of Defined Functions Available to IFD_Handler 1.0
  */
 RESPONSECODE
-IO_Create_Channel(DWORD channelid)
+IFDHCreateChannel (DWORD Lun, DWORD Channel)
 {
     Log1(PCSC_LOG_DEBUG, "");
-    if (vicc_init() < 0) return IFD_COMMUNICATION_ERROR;
+    if (vicc_init() < 0)
+        return IFD_COMMUNICATION_ERROR;
 
     return IFD_SUCCESS;
 }
 
 RESPONSECODE
-IO_Close_Channel(void)
+IFDHCreateChannelByName (DWORD Lun, LPSTR DeviceName)
+{
+    return IFDHCreateChannel (Lun, 0);
+}
+
+RESPONSECODE
+IFDHCloseChannel (DWORD Lun)
 {
     Log1(PCSC_LOG_DEBUG, "");
     RESPONSECODE r = IFD_Eject_ICC();
@@ -30,11 +37,11 @@ IO_Close_Channel(void)
 }
 
 RESPONSECODE
-IFD_Get_Capabilities(DWORD tag, PUCHAR value)
+IFDHGetCapabilities (DWORD Lun, DWORD Tag, PDWORD Length, PUCHAR Value)
 {
     char *atr;
     int size;
-    switch (tag) {
+    switch (Tag) {
         case TAG_IFD_ATR:
 
             size = vicc_getatr(&atr);
@@ -44,48 +51,57 @@ IFD_Get_Capabilities(DWORD tag, PUCHAR value)
             }
             Log2(PCSC_LOG_DEBUG, "Got ATR (%d bytes)", size);
 
-            memcpy(value, atr, size);
+            if (*Length < size)
+                return IFD_COMMUNICATION_ERROR;
+
+            memcpy(Value, atr, size);
+            *Length = size;
             free(atr);
-            return IFD_SUCCESS;
 
+            break;
         case TAG_IFD_SLOTS_NUMBER:
-            (*value) = 0;
-            return IFD_SUCCESS;
+            if (*Length < 1)
+                return IFD_COMMUNICATION_ERROR;
 
-        //case TAG_IFD_POLLING_THREAD_KILLABLE:
-            //return IFD_SUCCESS;
+            *Value  = 1;
+            *Length = 1;
 
+            break;
         default:
-            Log2(PCSC_LOG_DEBUG, "unknown tag %d", (int)tag);
+            Log2(PCSC_LOG_DEBUG, "unknown tag %d", (int)Tag);
+            return IFD_ERROR_TAG;
     }
 
-    return IFD_ERROR_TAG;
+    return IFD_SUCCESS;
 }
 
 RESPONSECODE
-IFD_Set_Capabilities(DWORD tag, PUCHAR value)
+IFDHSetCapabilities (DWORD Lun, DWORD Tag, DWORD Length, PUCHAR Value)
 {
     return IFD_NOT_SUPPORTED;
 }
 
 RESPONSECODE
-IFD_Set_Protocol_Parameters(DWORD protocoltype, UCHAR selectionflags, UCHAR
-        pts1, UCHAR pts2, UCHAR pts3)
+IFDHSetProtocolParameters (DWORD Lun, DWORD Protocol, UCHAR Flags, UCHAR PTS1,
+        UCHAR PTS2, UCHAR PTS3)
 {
     Log1(PCSC_LOG_DEBUG, "");
     return IFD_SUCCESS;
 }
 
 RESPONSECODE
-IFD_Power_ICC(DWORD a)
+IFDHPowerICC (DWORD Lun, DWORD Action, PUCHAR Atr, PDWORD AtrLength)
 {
-    switch (a) {
+    switch (Action) {
         case IFD_POWER_DOWN:
             if (vicc_poweroff() < 0) {
                 Log1(PCSC_LOG_ERROR, "could not powerdown");
                 return IFD_COMMUNICATION_ERROR;
             }
-            break;
+
+            *AtrLength = 0;
+
+            return IFD_SUCCESS;
         case IFD_POWER_UP:
             if (vicc_poweron() < 0) {
                 Log1(PCSC_LOG_ERROR, "could not powerup");
@@ -99,11 +115,11 @@ IFD_Power_ICC(DWORD a)
             }
             break;
         default:
-            Log2(PCSC_LOG_ERROR, "%d not supported", a);
+            Log2(PCSC_LOG_ERROR, "%d not supported", Action);
             return IFD_NOT_SUPPORTED;
     }
 
-    return IFD_SUCCESS;
+    return IFDHGetCapabilities (Lun, TAG_IFD_ATR, AtrLength, Atr);
 }
 
 RESPONSECODE
@@ -130,41 +146,47 @@ IFD_Confiscate_ICC(void)
 }
 
 RESPONSECODE
-IFD_Transmit_to_ICC(SCARD_IO_HEADER SendPci, PUCHAR TxBuffer, DWORD TxLength,
-        PUCHAR RxBuffer, PDWORD RxLength, PSCARD_IO_HEADER RecvPci)
+IFDHTransmitToICC (DWORD Lun, SCARD_IO_HEADER SendPci, PUCHAR TxBuffer,
+        DWORD TxLength, PUCHAR RxBuffer, PDWORD RxLength,
+        PSCARD_IO_HEADER RecvPci)
 {
-    Log1(PCSC_LOG_DEBUG, "");
-    (*RxLength) = 0;
-    char *rapdu;
+    if (!RxLength || !RecvPci)
+        return IFD_COMMUNICATION_ERROR;
 
+    char *rapdu;
     int size = vicc_transmit(TxLength, (char *) TxBuffer, &rapdu);
+
     if (size < 0) {
         Log1(PCSC_LOG_ERROR, "could not send apdu or receive rapdu");
+        *RxLength = 0;
         return IFD_COMMUNICATION_ERROR;
     }
 
     (*RxLength) = size;
     RxBuffer = memcpy(RxBuffer, rapdu, size);
     free(rapdu);
+    RecvPci->Protocol = 1;
 
     return IFD_SUCCESS;
 }
 
 RESPONSECODE
-IFD_Is_ICC_Present(void)
+IFDHICCPresence (DWORD Lun)
 {
     switch (vicc_present()) {
-        case 0:  return IFD_ICC_NOT_PRESENT;
-        case 1:  return IFD_ICC_PRESENT;
+        case 0:
+            return IFD_ICC_NOT_PRESENT;
+        case 1:
+            return IFD_ICC_PRESENT;
         default:
-                 Log1(PCSC_LOG_DEBUG, "Could not get ICC state");
-                 return IFD_COMMUNICATION_ERROR;
+            Log1(PCSC_LOG_DEBUG, "Could not get ICC state");
+            return IFD_COMMUNICATION_ERROR;
     }
-    return IFD_COMMUNICATION_ERROR;
 }
 
 RESPONSECODE
-IFD_Is_ICC_Absent(void)
+IFDHControl (DWORD Lun, DWORD dwControlCode, PUCHAR TxBuffer, DWORD TxLength,
+        PUCHAR RxBuffer, DWORD RxLength, LPDWORD pdwBytesReturned)
 {
-    return IFD_Is_ICC_Present();
+    return IFD_ERROR_NOT_SUPPORTED;
 }
diff --git a/virtualsmartcard/src/vpcd/vpcd.c b/virtualsmartcard/src/vpcd/vpcd.c
index 94636b0..023661e 100644
--- a/virtualsmartcard/src/vpcd/vpcd.c
+++ b/virtualsmartcard/src/vpcd/vpcd.c
@@ -90,7 +90,7 @@ int opensock(unsigned short port)
 }
 
 int waitforclient(int server, long int secs, long int usecs) {
-    int sock;
+    int sock = 0;
 
     fd_set rfds;
     FD_ZERO(&rfds);
@@ -189,7 +189,8 @@ int vicc_transmit(int apdu_len, const char *apdu, char **rapdu) {
 }
 
 int vicc_present(void) {
-    if (client_sock > 0) return 1;
+    if (client_sock > 0)
+        return 1;
     else {
         /* Wait up to one microsecond. */
         client_sock = waitforclient(server_sock, 0, 1);
diff --git a/virtualsmartcard/src/vpicc/VirtualSmartcard.py b/virtualsmartcard/src/vpicc/VirtualSmartcard.py
index 5ab9762..d6fea46 100644
--- a/virtualsmartcard/src/vpicc/VirtualSmartcard.py
+++ b/virtualsmartcard/src/vpicc/VirtualSmartcard.py
@@ -387,7 +387,7 @@ class VirtualICC(object): # {{{
         try:
             self.sock = self.connectToPort(host, port)
             self.sock.settimeout(None)
-        except socket.error as e:
+        except socket.error, e:
             print "Failed to open socket: " + str(e) + ". Is pcscd running? Is vpcd installed?"
             sys.exit()