diff --git a/ui/qt/capture_info_dialog.cpp b/ui/qt/capture_info_dialog.cpp
index 5db26080f5..850284913d 100644
--- a/ui/qt/capture_info_dialog.cpp
+++ b/ui/qt/capture_info_dialog.cpp
@@ -38,6 +38,8 @@ void capture_info_ui_create(
 capture_info    *cinfo,
 capture_options *capture_opts)
 {
+    Q_UNUSED(cinfo);
+    Q_UNUSED(capture_opts);
     g_log(NULL, G_LOG_LEVEL_DEBUG, "FIX: capture_info_ui_create");
 }
 
@@ -47,6 +49,7 @@ capture_options *capture_opts)
 void capture_info_ui_update(
 capture_info    *cinfo)
 {
+    Q_UNUSED(cinfo);
     g_log(NULL, G_LOG_LEVEL_DEBUG, "FIX: capture_info_ui_update");
 }
 
@@ -54,6 +57,7 @@ capture_info    *cinfo)
 void capture_info_ui_destroy(
 capture_info    *cinfo)
 {
+    Q_UNUSED(cinfo);
     g_log(NULL, G_LOG_LEVEL_DEBUG, "FIX: capture_info_ui_destroy");
 }
 
diff --git a/ui/qt/color_dialog.cpp b/ui/qt/color_dialog.cpp
index 4e592fc2cc..5d0664697c 100644
--- a/ui/qt/color_dialog.cpp
+++ b/ui/qt/color_dialog.cpp
@@ -40,6 +40,8 @@
 void
 color_filter_add_cb(color_filter_t *colorf, gpointer user_data)
 {
+    Q_UNUSED(colorf);
+    Q_UNUSED(user_data);
     g_log(NULL, G_LOG_LEVEL_DEBUG, "FIX: color_filter_add_cb");
 //    GtkWidget        *color_filters = user_data;
 
diff --git a/ui/qt/main.cpp b/ui/qt/main.cpp
index b97686e659..a1b92b40b0 100644
--- a/ui/qt/main.cpp
+++ b/ui/qt/main.cpp
@@ -154,6 +154,11 @@ extern capture_options global_capture_opts;
 // Copied from ui/gtk/gui_utils.c
 void pipe_input_set_handler(gint source, gpointer user_data, int *child_process, pipe_input_cb_t input_cb)
 {
+    Q_UNUSED(source);
+    Q_UNUSED(user_data);
+    Q_UNUSED(child_process);
+    Q_UNUSED(input_cb);
+
 //    static pipe_input_t pipe_input;
 
 //    pipe_input.source        = source;
@@ -619,12 +624,12 @@ int main(int argc, char *argv[])
     MainWindow *w;
 
     char                *init_progfile_dir_error;
-    char                *s;
+//    char                *s;
     int                  opt;
-    gboolean             arg_error = FALSE;
+//    gboolean             arg_error = FALSE;
 
-    extern int           info_update_freq;  /* Found in about_dlg.c. */
-    const gchar         *filter;
+//    extern int           info_update_freq;  /* Found in about_dlg.c. */
+//    const gchar         *filter;
 
 #ifdef _WIN32
     WSADATA 	       wsaData;
@@ -635,8 +640,8 @@ int main(int argc, char *argv[])
     char                *gdp_path, *dp_path;
     int                  err;
 #ifdef HAVE_LIBPCAP
-    gboolean             start_capture = FALSE;
-    gboolean             list_link_layer_types = FALSE;
+//    gboolean             start_capture = FALSE;
+//    gboolean             list_link_layer_types = FALSE;
     GList               *if_list;
     gchar               *err_str;
 #else
@@ -647,17 +652,17 @@ int main(int argc, char *argv[])
 #endif
 #endif
 #endif
-    gint                 pl_size = 280, tv_size = 95, bv_size = 75;
-    gchar               *rc_file, *cf_name = NULL, *rfilter = NULL, *jfilter = NULL;
-    dfilter_t           *rfcode = NULL;
-    gboolean             rfilter_parse_failed = FALSE;
+//    gint                 pl_size = 280, tv_size = 95, bv_size = 75;
+//    gchar               *rc_file, *cf_name = NULL, *rfilter = NULL, *jfilter = NULL;
+//    dfilter_t           *rfcode = NULL;
+//    gboolean             rfilter_parse_failed = FALSE;
     e_prefs             *prefs_p;
-    char                 badopt;
+//    char                 badopt;
     //GtkWidget           *splash_win = NULL;
     GLogLevelFlags       log_flags;
-    guint                go_to_packet = 0;
-    gboolean             jump_backwards = FALSE;
-    dfilter_t           *jump_to_filter = NULL;
+//    guint                go_to_packet = 0;
+//    gboolean             jump_backwards = FALSE;
+//    dfilter_t           *jump_to_filter = NULL;
     int                  optind_initial;
     int                  status;
 
diff --git a/ui/qt/main_welcome.cpp b/ui/qt/main_welcome.cpp
index 88d4a46301..800aafc799 100644
--- a/ui/qt/main_welcome.cpp
+++ b/ui/qt/main_welcome.cpp
@@ -202,7 +202,7 @@ void MainWelcome::updateRecentFiles() {
         rfRow++;
     }
 
-    while (m_recent_files.count() > prefs.gui_recent_files_count_max) {
+    while (m_recent_files.count() > (int) prefs.gui_recent_files_count_max) {
         m_recent_files.takeItem(m_recent_files.count());
     }
 }
diff --git a/ui/win32/file_dlg_win32.c b/ui/win32/file_dlg_win32.c
index 692d099a64..a86c8cba3e 100644
--- a/ui/win32/file_dlg_win32.c
+++ b/ui/win32/file_dlg_win32.c
@@ -1398,7 +1398,7 @@ preview_set_file_info(HWND of_hwnd, gchar *preview_file) {
     double      cur_time;
     gboolean    is_breaked = FALSE;
 
-    for (i = EWFD_PT_FORMAT; i <= EWFD_PTX_ELAPSED; i++) {
+    for (i = EWFD_PTX_FORMAT; i <= EWFD_PTX_ELAPSED; i++) {
         cur_ctrl = GetDlgItem(of_hwnd, i);
         if (cur_ctrl) {
             EnableWindow(cur_ctrl, FALSE);