[Bug 8425] Ecuadorian SRI ANEXO TRANSACCIONAL installer crashes

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=8425

------- Additional Comments From [e-mail]  2007-17-05 21:43 -------
SetLastError(0xdeadbeef);
memset(bufW, 'x', sizeof(bufW));
len = MultiByteToWideChar(CP_ACP, 0, "foobar", -1, bufW, 6);
ok(len == 0 && GetLastError() == ERROR_INSUFFICIENT_BUFFER,
   "MultiByteToWideChar(-1): len=%d error=%u\n", len, GetLastError());

Simple test above confirms that behaviour of MultiByteToWideChar is correct.