Possible may add these in a future version. Some are very specific while others could be useful to all. Another feature request was to use the default windows file context menu.
Skipping file types is supported via the options dialog (General tab, Exclude file extensions)
Size/Date filters will be considered for future versions.
Please install the Microsoft .Net framework version 1.1 or greater. Here is a link to 1.1: http://www.microsoft.com/downloads/details.aspx?familyid=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en.