diff --git a/client/ostinato.pro b/client/ostinato.pro
index 615700c..6c80918 100644
--- a/client/ostinato.pro
+++ b/client/ostinato.pro
@@ -8,26 +8,32 @@ INCLUDEPATH += "../rpc/" "../common/"
 win32 {
     QMAKE_LFLAGS += -static
     CONFIG(debug, debug|release) {
-        LIBS += -L"../common/debug" -lostfile -lostprotogui -lostproto
+        LIBS += -L"../common/debug" -lostfilegui -lostfile
+        LIBS += -L"../common/debug" -lostprotogui -lostproto
         LIBS += -L"../rpc/debug" -lpbrpc
         POST_TARGETDEPS += \
+            "../common/debug/libostfilegui.a" \
             "../common/debug/libostfile.a" \
             "../common/debug/libostprotogui.a" \
             "../common/debug/libostproto.a" \
             "../rpc/debug/libpbrpc.a"
     } else {
-        LIBS += -L"../common/release" -lostfile -lostprotogui -lostproto
+        LIBS += -L"../common/release" -lostfilegui -lostfile
+        LIBS += -L"../common/release" -lostprotogui -lostproto
         LIBS += -L"../rpc/release" -lpbrpc
         POST_TARGETDEPS += \
+            "../common/release/libostfilegui.a" \
             "../common/release/libostfile.a" \
             "../common/release/libostprotogui.a" \
             "../common/release/libostproto.a" \
             "../rpc/release/libpbrpc.a"
     }
 } else {
-    LIBS += -L"../common" -lostfile -lostprotogui -lostproto
+    LIBS += -L"../common" -lostfile -lostfilegui
+    LIBS += -L"../common" -lostprotogui -lostproto
     LIBS += -L"../rpc" -lpbrpc
     POST_TARGETDEPS += \
+        "../common/libostfilegui.a" \
         "../common/libostfile.a" \
         "../common/libostprotogui.a" \
         "../common/libostproto.a" \
diff --git a/common/nativefileformat.cpp b/common/nativefileformat.cpp
index f7b6f12..12ff4b6 100644
--- a/common/nativefileformat.cpp
+++ b/common/nativefileformat.cpp
@@ -21,7 +21,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 
 #include "crc32c.h"
 
-#include <QApplication>
+#include <QCoreApplication>
 #include <QFile>
 #include <QVariant>
 
@@ -437,17 +437,19 @@ _exit:
 
 void NativeFileFormat::initFileMetaData(OstProto::FileMetaData &metaData)
 {
+    QCoreApplication *app = QCoreApplication::instance();
+
     // Fill in the "native" file format version
     metaData.set_format_version_major(kFileFormatVersionMajor);
     metaData.set_format_version_minor(kFileFormatVersionMinor);
     metaData.set_format_version_revision(kFileFormatVersionRevision);
 
     metaData.set_generator_name(
-        qApp->applicationName().toUtf8().constData());
+        app->applicationName().toUtf8().constData());
     metaData.set_generator_version(
-        qApp->property("version").toString().toUtf8().constData());
+        app->property("version").toString().toUtf8().constData());
     metaData.set_generator_revision(
-        qApp->property("revision").toString().toUtf8().constData());
+        app->property("revision").toString().toUtf8().constData());
 }
 
 int NativeFileFormat::fileMetaSize(const quint8* file, int size)
diff --git a/common/ostfile.pro b/common/ostfile.pro
index ac8ca29..6c827b3 100644
--- a/common/ostfile.pro
+++ b/common/ostfile.pro
@@ -1,12 +1,9 @@
 TEMPLATE = lib
 CONFIG += qt staticlib
-QT += widgets network xml script
+QT += network xml script
 LIBS += \
     -lprotobuf
 
-FORMS = \
-    pcapfileimport.ui \
-
 PROTOS = \
     fileformat.proto 
 
@@ -24,10 +21,6 @@ HEADERS = \
     sessionfileformat.h \
     streamfileformat.h
 
-HEADERS += \
-    fileformatoptions.h \
-    pcapoptionsdialog.h
-
 SOURCES += \
     ostprotolib.cpp \
     nativefileformat.cpp \
@@ -42,10 +35,6 @@ SOURCES += \
     sessionfileformat.cpp \
     streamfileformat.cpp \
 
-SOURCES += \
-    fileformatoptions.cpp \
-    pcapoptionsdialog.cpp
-
 SOURCES += \
     vlanpdml.cpp \
     svlanpdml.cpp \
diff --git a/common/ostfilegui.pro b/common/ostfilegui.pro
new file mode 100644
index 0000000..eb7c62a
--- /dev/null
+++ b/common/ostfilegui.pro
@@ -0,0 +1,15 @@
+TEMPLATE = lib
+CONFIG += qt staticlib
+QT += widgets
+
+FORMS = \
+    pcapfileimport.ui
+
+HEADERS = \
+    fileformatoptions.h \
+    pcapoptionsdialog.h
+
+SOURCES = \
+    fileformatoptions.cpp \
+    pcapoptionsdialog.cpp
+
diff --git a/common/pcapfileformat.cpp b/common/pcapfileformat.cpp
index e3284c9..d3f9da1 100644
--- a/common/pcapfileformat.cpp
+++ b/common/pcapfileformat.cpp
@@ -19,8 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 
 #include "pcapfileformat.h"
 
-#include "pcapoptionsdialog.h"
-
 #include "pdmlreader.h"
 #include "ostprotolib.h"
 #include "streambase.h"
diff --git a/ost.pro b/ost.pro
index a174bc3..873671b 100644
--- a/ost.pro
+++ b/ost.pro
@@ -1,9 +1,9 @@
 TEMPLATE = subdirs
-SUBDIRS = client server ostfile ostproto ostprotogui rpc extra
+SUBDIRS = client server ostfile ostfilegui ostproto ostprotogui rpc extra
 
 client.target = client
 client.file = client/ostinato.pro
-client.depends = ostfile ostproto ostprotogui rpc extra
+client.depends = ostfile ostfilegui ostproto ostprotogui rpc extra
 
 server.target = server
 server.file = server/drone.pro
@@ -12,6 +12,9 @@ server.depends = ostproto rpc
 ostfile.file = common/ostfile.pro
 ostfile.depends = ostproto
 
+ostfilegui.file = common/ostfilegui.pro
+ostfilegui.depends = ostfile
+
 ostproto.file = common/ostproto.pro
 
 ostprotogui.file = common/ostprotogui.pro
diff --git a/test/test.pro b/test/test.pro
index 1ba6bfb..a2fe5a7 100644
--- a/test/test.pro
+++ b/test/test.pro
@@ -1,6 +1,6 @@
 TEMPLATE = app
 CONFIG += qt console
-QT += xml network script widgets
+QT += xml network script
 INCLUDEPATH += "../rpc/" "../common/" "../client"
 win32 {
     LIBS += -lwpcap -lpacket