C# :: Listbox File Populate Filtered With Regex

i found somewhere online this code that populate my listbox with file names. Now is it anyhow possible to filter those names before it gets populated by regex ?

Code:

private void PopulateListBox(ListBox lsb, string Folder, string FileType)
{
DirectoryInfo dinfo = new DirectoryInfo(Folder);
FileInfo[] Files = dinfo.GetFiles(FileType);
foreach (FileInfo file in Files)
{
lsb.Items.Add(file.Name);
}
}

Call on form load:

PopulateListBox(listBox1, Application.StartupPath, "*.exe");

Now is there way to add regex for filename?