# License Information

Your license key controls whether you have the full version of the KeyView SDK, or a trial version. It also determines whether the following advanced features are enabled:

- Advanced character set detection with the character set detection library (`kvlangdetect`).

- Advanced document readers:

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

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

  - Mailbox (MBX) reader (`mbxsr`)

- Processing of documents protected by Microsoft RMS encryption.

If you obtain a new license key from Micro Focus, you must update the licensing information that you pass to KeyView. See Pass License Information to KeyView.

## Enable Advanced Document Readers

To enable advanced readers, you must obtain an appropriate license key from Micro Focus and pass the license key to KeyView as described in Pass License Information to KeyView.

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`.

## Pass License Information to KeyView

If you have an evaluation version of KeyView and purchase 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 you pass to KeyView.

To provide license information as a file

1. Open or create the license key file, `kv.lic`, in a text editor. The file must be saved in the same directory as the KeyView libraries, and must contain your organization name and license key.

       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 file.

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