This one does:

-Catalogs fixed and removable media
-FAST search through catalogs
-Directory listings
-Find duplicate or unique files
-Single 56 kbytes file,no install needed

Homepage: http://www.mtg.sk/rva

Download link: http://rvas.webzdarma.cz/Cathy.zip


Companion command line app to make catalogs from batch: http://rvas.webzdarma.cz/CathyCmd.zip

I have like a 4k app which (securely) formats your disk and makes a blank partition table, written in ASM.