i\'m using the tessnet2 wrapper to the Tesseract 2.04 Source on windows XP, configured it to work with x86.
TessarctTest project main function contains:
Make sure your tessdata folder (C:\temp\tessdata) contains the english language data files. The files are: eng.DangAmbigs, eng.freq-dawg, eng.inttemp, eng.normproto, eng.pffmtable, eng.unicharset, eng.user-words, eng.word-dawg. download the files from tesseract downloads. The file to download is tesseract-2.00.eng.tar.gz.