How can I locate all the network printers in the enterprise?

Question

When I go to Printers and Faxes dialog, I can click the Add a printer link, select Network Printer, then Find a printer in the directory. From there I get a dialog box which lets me find ALL printers in the enterprise.

I need to find all the network printers with my code. How can I do this?

Note that I am not talking about network printers that are connected to my PC, but all network printers in the enterprise (my workplace has almost 4000 printers).

P.S. PrintServer().GetPrintQueues only returns printers attached to the computer.

P.P.S. Here is a short video of what I want: http://www.angryhacker.com/toys/FindAllPrinters/FindAllPrinters.html

Answer 1

DirectorySearcher with a filter for (objectClass=printer) (objectClass=printQueue)should do the trick.

using (var e = new DirectoryEntry("LDAP://DC=example,DC=com"))
    using (var s = new DirectorySearcher(e)) {
        s.Filter = "(objectClass=printQueue)";

        using (var c = s.FindAll()) {
            WL("Returned {0} objects", c.Count);
            foreach (SearchResult r in c) {
                WL("{0}", r.Path);
            }
        }
    }