WinRAR 5.21 去弹窗 疑惑

WinRAR 突然就有弹窗广告了 ，找了个方法，重新写一下安装目录下的 rarreg.key，确实有效果但是重写的和之前的完全一样啊，至少在文本中完全一样，怎么回事。

下面附上两个文件，

1.key 是原始key，rarreg.key是达到去弹窗的key

写了个程序也发现是一样的 。

 1 #include <iostream>
 2 #include <cstdio>
 3 #include <fstream>
 4 #include <algorithm>
 5 #include <cmath>
 6 #include <deque>
 7 #include <vector>
 8 #include <queue>
 9 #include <string>
10 #include <cstring>
11 #include <map>
12 #include <stack>
13 #include <set>
14 #define LL long long
15 #define INF 0x3f3f3f3f
16 #define OPEN_FILE
17 using namespace std;
18
19 char s1[30][101];
20 char s2[30][101];
21 int main()
22 {
23 #ifdef OPEN_FILE
24     freopen("1.key", "r", stdin);
25     //freopen("out.txt", "w", stdout);
26 #endif // OPEN_FILE
27     int i = 0;
28     while (~scanf("%s", s1[i])){
29         i++;
30     }
31     freopen("rarreg.key", "r", stdin);
32     int j = 0;
33     while (~scanf("%s", s2[j])){
34         j++;
35     }
36     bool flag = false;
37     for (int k = 0; k < i; k++){
38         int len = strlen(s1[k]);
39         if (len != strlen(s2[k])){
40             flag = true;
41             break;
42         }
43         for (int p = 0; p < len; p++){
44             if (s1[k][p] != s2[k][p]){
45                 flag = true;
46                 break;
47             }
48         }
49     }
50
51     if (flag){
52         printf("NO\n");
53     }
54     else{
55         printf("YES\n");
56     }
57
58 }

1.key

 1 RAR registration data
 2 Federal Agency for Education
 3 1000000 PC usage license
 4 UID=b621cca9a84bc5deffbf
 5 6412612250ffbf533df6db2dfe8ccc3aae5362c06d54762105357d
 6 5e3b1489e751c76bf6e0640001014be50a52303fed29664b074145
 7 7e567d04159ad8defc3fb6edf32831fd1966f72c21c0c53c02fbbb
 8 2f91cfca671d9c482b11b8ac3281cb21378e85606494da349941fa
 9 e9ee328f12dc73e90b6356b921fbfb8522d6562a6a4b97e8ef6c9f
10 fb866be1e3826b5aa126a4d2bfe9336ad63003fc0e71c307fc2c60
11 64416495d4c55a0cc82d402110498da970812063934815d81470829275

rarreg.key

 1 RAR registration data
 2 Federal Agency for Education
 3 1000000 PC usage license
 4 UID=b621cca9a84bc5deffbf
 5 6412612250ffbf533df6db2dfe8ccc3aae5362c06d54762105357d
 6 5e3b1489e751c76bf6e0640001014be50a52303fed29664b074145
 7 7e567d04159ad8defc3fb6edf32831fd1966f72c21c0c53c02fbbb
 8 2f91cfca671d9c482b11b8ac3281cb21378e85606494da349941fa
 9 e9ee328f12dc73e90b6356b921fbfb8522d6562a6a4b97e8ef6c9f
10 fb866be1e3826b5aa126a4d2bfe9336ad63003fc0e71c307fc2c60
11 64416495d4c55a0cc82d402110498da970812063934815d81470829275