Getting Multiple file extensions with Directory.GetFiles()

I was looking for a way to list the files in a folder with different extensions and I came across a solution that Andreas Kraus(http://www.sunlab.de) wrote. So I took that and modified it a little

public static string[] GetFiles(
                                string path,
                                string searchPattern)
{
    string[] m_arExt = searchPattern.Split(';');

    List<string> strFiles = new List<string>();
    foreach(string filter in m_arExt)
    {
        strFiles.AddRange(
               System.IO.Directory.GetFiles(path, filter));
    }
    return strFiles.ToArray();
}

Thanks Andreas.