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# XPKeygen # XPKeygen
A Windows XP / Windows Server 2003 VLK key generator. This tool allows you to generate _valid Windows XP keys_ based on the _raw product key_, which can be random. A Windows XP / Windows Server 2003 VLK key generator. This tool allows you to generate _valid Windows XP keys_ based on the _Raw Product Key_, which can be random.
The **Raw Product Key (RPK)** is supplied in a form of 9 digits `XXX-YYYYYY` and is only necessary to generate a Windows XP Key. The **Raw Product Key (RPK)** is supplied in form of 9 digits `XXX-YYYYYY` and is only necessary to generate a Windows XP Key.
![image](https://user-images.githubusercontent.com/44542704/231724854-4517f3a1-2330-4e70-83ae-6c52fa1b4745.png) ![image](https://user-images.githubusercontent.com/44542704/231724854-4517f3a1-2330-4e70-83ae-6c52fa1b4745.png)
@ -36,23 +36,21 @@ We need to use a random Raw Product Key as a base to generate a Product ID in a
### Product ID ### Product ID
| Digits | Meaning | | Digits | Meaning |
|-------:|:-------------------------------------------------------| |-------:|:----------------------|
| AAAAA | OS Family constant | | AAAAA | OS Family constant |
| BBB | Most significant 3 digits of the RPK | | BBB | Channel ID |
| CCCCCC | Least significant 6 digits of the RPK | | CCCCCC | Sequence Number |
| S | Check digit | | S | Check digit |
| DD | Index of the public key used to verify the Product Key | | DD | Public key index |
| EEE | Random 3-digit number | | EEE | Random 3-digit number |
The OS Family constant `AAAAA` is different for each series of Windows XP. For example, it is 76487 for SP3. The OS Family constant `AAAAA` is different for each series of Windows XP. For example, it is 76487 for SP3.
The `BBB` and `CCCCCC` sections essentially encode the Raw Product Key. For example, if the first section is equal to `XXX` and the second section is equal to `YYYYYY`, the Raw Product Key will be encoded as `XXX-YYYYYY`.
The `BBB` and `CCCCCC` sections essentially directly correspond to the Raw Product Key. If the RPK is `XXXYYYYYY`, these two sections
will transform to `XXX` and `YYYYYY` respectively.
The check digit `S` is picked so that the sum of all `C` digits with it added makes a number divisible by 7. The check digit `S` is picked so that the sum of all `C` digits with it added makes a number divisible by 7.
The public key index `DD` lets us know which public key was used to successfully verify the authenticity of our Product Key. The public key index `DD` lets us know which public key was used to successfully verify the authenticity of our Product Key.
For example, it's 22 for Professional keys and 23 for VLK keys. For example, it's `22` for Professional keys and `23` for VLK keys.
A random number `EEE` is used to generate a different Installation ID each time. A random number `EEE` is used to generate a different Installation ID each time.