Provided here is the DOC file as an online database. This consists of words from Middle Chinese and their reflexes in various modern dialects. Right now you can search only by character. When I feel like it, I'll add other options. For more information, see DOCUSE7.pdf (445 KB).
The original file contained some errors - eight records with either extra/missing/inconsistent characters, fifty (!) with a 禪 (shàn) initial that had been incorrectly coded as 襌 (dān), and ten with a superfluous yin/yang distinction. These errors have been fixed.
If you'd like to download my corrected files, you can do so here: DOC-utf8-2007-03-31.zip (320 KB).