# License Information

During installation, the installation program generates the `install/OS/bin/kv.lic` file, where `install` is the directory in which you installed KeyView, and `OS` is the operating system. This file is opened and validated when the KeyView API is used.

The `kv.lic` file contains the organization name and the 31-digit license key you specified during installation. The contents of a `kv.lic` file looks similar to the following:

    Company Name
    XXXXXXX-XXXXXXX-XXXXXXX-XXXXXXX

The license key controls whether the following are enabled:

- the full version of the KeyView SDK

- the trial version of the KeyView SDK

- language detection and advanced document readers—The following components are considered advanced features, and are licensed separately:

  - Microsoft Outlook Personal Folders (PST) readers (`pstsr`, `pstnsr`, and `pstxsr`)

  - Lotus Notes database (NSF) reader (`nsfsr`)

  - Mailbox (MBX) reader (`mbxsr`)

  - Character set detection library (`kvlangdetect`)

If you change the license key at any time, you must update the licensing information in the `kv.lic` file. See Update License Information.

## Enable Advanced Document Readers

To enable advanced readers in one of the KeyView SDKs, you must obtain an appropriate license key from Micro Focus and update the installed license key with the new information as described in Update License Information.

If you are enabling the MBX reader in an existing installation of Viewing SDK, in addition to updating the license key, you must also follow these steps:

If you are using the registry file:

1. Open the `install.reg.txt```in a text editor. The file is installed in the `install\redist` directory, where `install` is the directory in which you installed Viewing SDK.
2. Under the key `[HKEY_LOCAL_MACHINE\Software\Verity\Viewing SDK\KVMAILVE]`, change the parameter `"208="emlsr.dll"` to `"208="mbxsr.dll"`.
3. Save the file as `install.reg` and import the file into your Windows system registry.

If you are using the `kvsdk.ini` file:

1. Open the `kvsdk.ini` file with a text editor. The file is installed in the root of the Windows directory.
2. In the `[KVMAILVE]` section of the `kvsdk.ini` file, change the parameter `208=emlsr.dll` to `208=mbxsr.dll`.

## Update License Information

If you currently have an evaluation version of KeyView and have purchased a full version of the SDK, or you are adding a document reader (for example, the PST reader), you must update the license information that was installed with the original version of the KeyView SDK.

If you installed a full version of KeyView, but did not enter licensing information at the time of installation, you must also update the license information.

To update the information, do one of the following:

- Manually update the license information that is stored in the text file named `kv.lic`.
- Re-install the product and enter the new license information when prompted.

To update the KeyView license information

1. Open the license key file, `kv.lic`, in a text editor. The file is in the `install\OS\bin` directory, where `install` is the directory in which you installed KeyView, and `OS` is the operating system. The file contains the following text:

       COMPANY NAME
       XXXXXXX-XXXXXXX-XXXXXXX-XXXXXXX

2. Replace the text `COMPANY NAME` with the company name that appears at the top of the License Key Sheet provided by Micro Focus. Enter the text exactly as it appears in the document.
3. Replace the characters `XXXXXX-XXXXXXX-XXXXXXX-XXXXXXX` with the appropriate license key from the License Key Sheet provided by Micro Focus. The license key is listed in the Key column in the Standalone Products table. The key is a string that contains 31 characters, for example, `2TQD22D-2M6FV66-2KPF23S-2GEM5AB`. Enter the characters exactly as they appear in the document, including the dashes, but do not include a leading or trailing space.

4. The finished `kv.lic` file looks similar to the following:

       Autonomy
       24QD22D-2M6FV66-2KPF23S-2G8M59B

5. Save the `kv.lic` file.

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