Application Image corrupted

I have read the documentation of Bootloader in NetOs 6.0. If bootlader detects an application image corrupted, it attempts to download an image from a server TFTP. Where do I find a simple DHCP/BOOTP server and a TFTP server to test this procedure?

You can find a simple freeware TFTP server http://solarwinds.net/Tools/Free_tools/TFTP_Server/index.htm Alex