private void btnChangeTabsFolder_Click(object sender, RoutedEventArgs e) {
var ctf = new FolderSelectDialog();
ctf.Title = "Change Tab Folder";
ctf.InitialDirectory = new DirectoryInfo(sstdir).Parent.FullName;
if (ctf.ShowDialog()) {
Utilities.SetRegistryValue("SavedTabsDirectory", ctf.FileName + "\\");
txtDefSaveTabs.Text = ctf.FileName + "\\";
sstdir = ctf.FileName + "\\";
}
}