uTorrent 2.0.4 for Windows with buit-in 242 country flags, also patched to resolve country for all non-geographic domains, not for .com and .net only.

In other words, it will display flags for all countries in 100% cases (both for IP and reverse DNS peers) and doesn't require any updates.

You can seed it with itself.

Usage:
  * Set peer.resolve_country = true in Advanced Options.
  * Throw out flags.conf and flags.bmp you're using to hell. Built-in flags forever!
  * Enjoy :-)

List of countries (242 total):
  AD, AE, AF, AG, AI, AL, AM, AN, AO, AR, AS, AT, AU, AW, AX, AZ,
  BA, BB, BD, BE, BF, BG, BH, BI, BJ, BM, BN, BO, BR, BS, BT, BV, BW, BY, BZ,
  CA, CC, CD, CF, CG, CH, CI, CK, CL, CM, CN, CO, CR, CS, CU, CV, CX, CY, CZ,
  DE, DJ, DK, DM, DO, DZ,
  EC, EE, EG, EH, ER, ES, ET, EU,
  FI, FJ, FK, FM, FO, FR,
  GA, GD, GE, GF, GH, GI, GL, GM, GN, GP, GQ, GR, GS, GT, GU, GW, GY,
  HK, HM, HN, HR, HT, HU,
  ID, IE, IL, IN, IO, IQ, IR, IS, IT,
  JM, JO, JP,
  KE, KG, KH, KI, KM, KN, KP, KR, KW, KY, KZ,
  LA, LB, LC, LI, LK, LR, LS, LT, LU, LV, LY,
  MA, MC, MD, ME, MG, MH, MK, ML, MM, MN, MO, MP, MQ, MR, MS, MT, MU, MV, MW, MX, MY, MZ,
  NA, NC, NE, NF, NG, NI, NL, NO, NP, NR, NU, NZ,
  OM,
  PA, PE, PF, PG, PH, PK, PL, PM, PN, PR, PS, PT, PW, PY,
  QA,
  RE, RO, RS, RU, RW,
  SA, SB, SC, SD, SE, SG, SH, SI, SJ, SK, SL, SM, SN, SO, SR, ST, SV, SY, SZ,
  TC, TD, TF, TG, TH, TJ, TK, TL, TM, TN, TO, TR, TT, TV, TW, TZ,
  UA, UG, UK, UM, US, UY, UZ,
  VA, VC, VE, VG, VI, VN, VU,
  WF, WS,
  YE, YT,
  ZA, ZM, ZW