diff --git a/src/add-ons/print/transports/parallel_port/Jamfile b/src/add-ons/print/transports/parallel_port/Jamfile
index d994a75e11..9fa208a197 100644
--- a/src/add-ons/print/transports/parallel_port/Jamfile
+++ b/src/add-ons/print/transports/parallel_port/Jamfile
@@ -3,11 +3,11 @@ SubDir HAIKU_TOP src add-ons print transports parallel_port ;
 SetSubDirSupportedPlatformsBeOSCompatible ;
 
 UsePrivateHeaders print ;
-SubDirHdrs [ FDirName $(HAIKU_TOP) src add-ons print transports shared ] ;
 
 Addon Parallel\ Port :
 	ParallelTransport.cpp
-	: be libprintutils.a $(TARGET_LIBSUPC++)
+	PrintTransportAddOn.cpp
+	: be $(TARGET_LIBSUPC++)
 ;
 
 Package haiku-printingkit-cvs :
diff --git a/src/add-ons/print/transports/parallel_port/PrintTransportAddOn.cpp b/src/add-ons/print/transports/parallel_port/PrintTransportAddOn.cpp
new file mode 100644
index 0000000000..9ab4efbaf1
--- /dev/null
+++ b/src/add-ons/print/transports/parallel_port/PrintTransportAddOn.cpp
@@ -0,0 +1,32 @@
+#include "PrintTransportAddOn.h"
+
+// We don't support multiple instances of the same transport add-on
+static BDataIO* gTransport = NULL;
+
+extern "C" _EXPORT BDataIO *init_transport(BMessage *msg)
+{
+	if (msg == NULL || gTransport != NULL)
+		return NULL;
+		
+	const char *spool_path = msg->FindString("printer_file");
+
+	if (spool_path && *spool_path != '\0') {
+		BDirectory printer(spool_path);
+
+		if (printer.InitCheck() == B_OK) {
+			gTransport = instantiate_transport(&printer, msg);
+			return gTransport;
+		};
+	};
+	
+	return NULL;
+}
+
+extern "C" _EXPORT void exit_transport()
+{
+	if (gTransport) {
+		delete gTransport;
+		gTransport = NULL;	
+	}
+}
+
diff --git a/src/add-ons/print/transports/serial_port/Jamfile b/src/add-ons/print/transports/serial_port/Jamfile
index 4d6bba87d1..168e9caef6 100644
--- a/src/add-ons/print/transports/serial_port/Jamfile
+++ b/src/add-ons/print/transports/serial_port/Jamfile
@@ -3,11 +3,11 @@ SubDir HAIKU_TOP src add-ons print transports serial_port ;
 SetSubDirSupportedPlatformsBeOSCompatible ;
 
 UsePrivateHeaders print ;
-SubDirHdrs [ FDirName $(HAIKU_TOP) src add-ons print transports shared ] ;
 
 Addon Serial\ Port :
 	SerialTransport.cpp
-	: be libprintutils.a $(TARGET_LIBSUPC++)
+	PrintTransportAddOn.cpp
+	: be $(TARGET_LIBSUPC++)
 ;
 
 Package haiku-printingkit-cvs :
diff --git a/src/add-ons/print/transports/serial_port/PrintTransportAddOn.cpp b/src/add-ons/print/transports/serial_port/PrintTransportAddOn.cpp
new file mode 100644
index 0000000000..9ab4efbaf1
--- /dev/null
+++ b/src/add-ons/print/transports/serial_port/PrintTransportAddOn.cpp
@@ -0,0 +1,32 @@
+#include "PrintTransportAddOn.h"
+
+// We don't support multiple instances of the same transport add-on
+static BDataIO* gTransport = NULL;
+
+extern "C" _EXPORT BDataIO *init_transport(BMessage *msg)
+{
+	if (msg == NULL || gTransport != NULL)
+		return NULL;
+		
+	const char *spool_path = msg->FindString("printer_file");
+
+	if (spool_path && *spool_path != '\0') {
+		BDirectory printer(spool_path);
+
+		if (printer.InitCheck() == B_OK) {
+			gTransport = instantiate_transport(&printer, msg);
+			return gTransport;
+		};
+	};
+	
+	return NULL;
+}
+
+extern "C" _EXPORT void exit_transport()
+{
+	if (gTransport) {
+		delete gTransport;
+		gTransport = NULL;	
+	}
+}
+
diff --git a/src/add-ons/print/transports/usb_port/Jamfile b/src/add-ons/print/transports/usb_port/Jamfile
index be32de1143..c548cabe26 100644
--- a/src/add-ons/print/transports/usb_port/Jamfile
+++ b/src/add-ons/print/transports/usb_port/Jamfile
@@ -3,11 +3,11 @@ SubDir HAIKU_TOP src add-ons print transports usb_port ;
 SetSubDirSupportedPlatformsBeOSCompatible ;
 
 UsePrivateHeaders print ;
-SubDirHdrs [ FDirName $(HAIKU_TOP) src add-ons print transports shared ] ;
 
 Addon USB\ Port :
 	USBTransport.cpp
-	: be libprintutils.a $(TARGET_LIBSUPC++)
+	PrintTransportAddOn.cpp
+	: be $(TARGET_LIBSUPC++)
 ;
 
 Package haiku-printingkit-cvs :
diff --git a/src/add-ons/print/transports/usb_port/PrintTransportAddOn.cpp b/src/add-ons/print/transports/usb_port/PrintTransportAddOn.cpp
new file mode 100644
index 0000000000..9ab4efbaf1
--- /dev/null
+++ b/src/add-ons/print/transports/usb_port/PrintTransportAddOn.cpp
@@ -0,0 +1,32 @@
+#include "PrintTransportAddOn.h"
+
+// We don't support multiple instances of the same transport add-on
+static BDataIO* gTransport = NULL;
+
+extern "C" _EXPORT BDataIO *init_transport(BMessage *msg)
+{
+	if (msg == NULL || gTransport != NULL)
+		return NULL;
+		
+	const char *spool_path = msg->FindString("printer_file");
+
+	if (spool_path && *spool_path != '\0') {
+		BDirectory printer(spool_path);
+
+		if (printer.InitCheck() == B_OK) {
+			gTransport = instantiate_transport(&printer, msg);
+			return gTransport;
+		};
+	};
+	
+	return NULL;
+}
+
+extern "C" _EXPORT void exit_transport()
+{
+	if (gTransport) {
+		delete gTransport;
+		gTransport = NULL;	
+	}
+}
+