近日小弟朋友装机，弄了个侠客系统修改器来装上，功能强大，未注册版也没什么使用限制，就是老会蹦出个对话框提醒注册，下面是其注册码生成过程：

#include "stdio.h"
#include "conio.h"
main()
{ int i,j,n,flag;
  unsigned char ansq[16];
  unsigned char ansr[16];
  unsigned char name[16];
  char table[]="0123456789abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
  textcolor(GREEN);
  cprintf("*****************************************************************");
  printf("\n");
  cprintf("    SysSet V1.21 KeyMaker By AirHolder,Written At 2001-8-20    ");
  printf("\n");
  cprintf("*****************************************************************");
  printf("\n\nEnter Your Name Here(At Least 3 Chars But Don't Exceed 16!):");
  gets(name);
  n=strlen(name);
  printf("Your Reg Code Is:");
  if (n%2==0)
    for(i=0;i<n;i=i+2)
    { ansr[i]=name[i]%0x24;
      ansq[i]=name[i]/0x24;
      ansr[i+1]=name[i+1]%0x24;
      ansq[i+1]=name[i+1]/0x24;
      if (ansr[i]>0x9) ansr[i]=ansr[i]+0x57;
      else ansr[i]=ansr[i]+0x30;
      if (ansq[i]>0x9) ansq[i]=ansq[i]+0x57;
      else ansq[i]=ansq[i]+0x30;
      if (ansr[i+1]>0x9) ansr[i+1]=ansr[i+1]+0x57;
      else ansr[i+1]=ansr[i+1]+0x30;
      if (ansq[i+1]>0x9) ansq[i+1]=ansq[i+1]+0x57;
      else ansq[i+1]=ansq[i+1]+0x30;
      for(j=0;j<72;j++)
      {  if (ansq[i]==table[j])
          {  flag=j;  break;  }}
      ansq[i]=table[0x24-flag+0x23];
      printf("%c%c%c%c",ansr[i],ansq[i+1],ansq[i],ansr[i+1]);  }
  else {
    for(i=0;i<n-1;i=i+2)
    { ansr[i]=name[i]%0x24;
      ansq[i]=name[i]/0x24;
      ansr[i+1]=name[i+1]%0x24;
      ansq[i+1]=name[i+1]/0x24;
      if (ansr[i]>0x9) ansr[i]=ansr[i]+0x57;
      else ansr[i]=ansr[i]+0x30;
      if (ansq[i]>0x9) ansq[i]=ansq[i]+0x57;
      else ansq[i]=ansq[i]+0x30;
      if (ansr[i+1]>0x9) ansr[i+1]=ansr[i+1]+0x57;
      else ansr[i+1]=ansr[i+1]+0x30;
      if (ansq[i+1]>0x9) ansq[i+1]=ansq[i+1]+0x57;
      else ansq[i+1]=ansq[i+1]+0x30;
      for(j=0;j<72;j++)
      {  if (ansq[i]==table[j])
          {  flag=j;  break;  }}
      ansq[i]=table[0x24-flag+0x23];
      printf("%c%c%c%c",ansr[i],ansq[i+1],ansq[i],ansr[i+1]);  }
    ansr[n-1]=name[n-1]%0x24;
    ansq[n-1]=name[n-1]/0x24;
    if (ansr[n-1]>0x9) ansr[n-1]=ansr[n-1]+0x57;
    else ansr[n-1]=ansr[n-1]+0x30;
    if (ansq[n-1]>0x9) ansq[n-1]=ansq[n-1]+0x57;
    else ansq[n-1]=ansq[n-1]+0x30;
    printf("%c%c",ansr[n-1],ansq[n-1]);  }

  printf("\nPress Any Key To Exit!\n");
  printf("\n\t\t\t  Cracked By ");
  textcolor(YELLOW);
  cprintf("AirHolder");
  printf("\n\t\tAny Problem Please Email Me:");
  textcolor(BROWN);
  cprintf("airholder@263.net");
  printf("\n\t\t\tWish You A Good Luck!!! ^_^\n");
  getch();
}

                                                  AirHolder
                                                  2001.9.1.