Access系列加密很简单;如果你有BCB,使用下面的程序就可以得到密码。
(不是用户/口令的密码,是“数据库密码”)
...
  int fHandle;
  AnsiString password;  fHandle=FileOpen(Path,fmOpenRead);
  if(fHandle==-1) throw Exception("无法打开文件"+Path);    wchar_t s0[]={0x7441,0x37EC,0xCB9A,0xFA9C,
                  0xD101,0xE628,0x39D4,0x608A,
                  0x1B93,0x367B,0xFD32,0xB1DF,
                  0x7BB0,0x4313,0x2008,0x33B1,
                  0xEEF3,0x5B79,0x3A55,0x2A7C};
    const int sLen=sizeof(s0)/sizeof(s0[0]);
    wchar_t s1[sLen+1];    FileSeek(fHandle,0x42,0);
    FileRead(fHandle,s1,sLen*(sizeof(wchar_t)/sizeof(char)));
    int i;
    for(i=0;i<sLen;++i){
      s1[i]^=s0[i];
    }
    s1[i]=0;
    password=s1;
...