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Change the Word Breaker Used for US English and UK English

SQL Server 2014 installs a new version (version 14.0.4999.1038) of the word breaker and stemmer for the English language, replacing the previous version of these components (version 12.0.6828.0). For information about the changed behavior of the new components, see Behavior Changes to Full-Text Search. This topic describes how to switch from the new version of these components to the previous version, or to switch back from the previous version to the new version. For cluster installations, these changes should be made on all the primary and passive nodes.

Previous versions of SQL Server used different word breakers represented by different CLSIDs for US English (LCID 1033) and UK English (LCID 2057). In this release, both LCIDs use the same components with the same CLSIDs, as shown in the following table:

LCID

Word breaker installed by previous versions

version 12.0.6828.0

Stemmer installed by previous versions

Word breaker installed by this version

version 14.0.4999.1038

Stemmer installed by this version

1033 (US English)

188D6CC5-CB03-4C01-912E-47D21295D77E

EEED4C20-7F1B-11CE-BE57-00AA0051FE20

9faed859-0b30-4434-ae65-412e14a16fb8

e1e5ef84-c4a6-4e50-8188-99aef3de2659

2057 (UK English)

173C97E2-AEBE-437C-9445-01B237ABF2F6

D99F7670-7F1A-11CE-BE57-00AA0051FE20

9faed859-0b30-4434-ae65-412e14a16fb8

e1e5ef84-c4a6-4e50-8188-99aef3de2659

The components described in this topic are DLL files that are installed in the MSSQL\Binn folder for the SQL Server instance. The full path is typically C:\Program Files\Microsoft SQL Server\<instance>\MSSQL\Binn.

For more information about word breakers and stemmers, see Configure and Manage Word Breakers and Stemmers for Search.

To switch from the current version of the US English word breaker to the previous version

  1. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\CLSID.

  2. Use the following steps to add new keyS for the COM ClassIDs for the previous US English word breaker and stemmer interfaces for LCID 1033:

    1. Add a new key with the value {188D6CC5-CB03-4C01-912E-47D21295D77E} for the previous word breaker.

    2. Update the (Default) data of that key value to langwrbk.dll.

    3. Add a new key with the value {EEED4C20-7F1B-11CE-BE57-00AA0051FE20} for the previous stemmer.

    4. Update the (Default) data of that key value to infosoft.dll.

  3. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\Language\enu.

  4. Update the WBreakerClass key value to {188D6CC5-CB03-4C01-912E-47D21295D77E}.

  5. Update the StemmerClass key value to {EEED4C20-7F1B-11CE-BE57-00AA0051FE20}.

  6. Restart SQL Server.

To switch from the current version of the UK English word breaker to the previous version

  1. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\CLSID.

  2. Use the following steps to add a new key for the COM ClassIDs for the previous UK English word breaker and stemmer interfaces for LCID 2057:

    1. Add a new key with the value {173C97E2-AEBE-437C-9445-01B237ABF2F6} for the previous word breaker.

    2. Update the (Default) data of that key value to langwrbk.dll.

    3. Add a new key with the value {D99F7670-7F1A-11CE-BE57-00AA0051FE20} for the previous stemmer.

    4. Update the (Default) data of that key value to infosoft.dll.

  3. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\Language\eng.

  4. Update the WBreakerClass key value to {173C97E2-AEBE-437C-9445-01B237ABF2F6}.

  5. Update the StemmerClass key value to {D99F7670-7F1A-11CE-BE57-00AA0051FE20}.

  6. Restart SQL Server.

To switch back from the previous version of the US English word breaker to the current version

  1. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\CLSID.

  2. If the following keys do not exist, then use the following steps to add a new key for the COM ClassIDs for the current US English word breaker and stemmer interfaces for LCID 1033:

    1. Add a new key with the value {9faed859-0b30-4434-ae65-412e14a16fb8} for the current word breaker.

    2. Update the (Default) data of that key value to MsWb7.dll.

    3. Add a new key with the value {e1e5ef84-c4a6-4e50-8188-99aef3de2659} for the current stemmer.

    4. Update the (Default) data of that key value to MsWb7.dll.

  3. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\Language\eng.

  4. Update the WBreakerClass key value to {9faed859-0b30-4434-ae65-412e14a16fb8}.

  5. Update the StemmerClass key value to {e1e5ef84-c4a6-4e50-8188-99aef3de2659}.

  6. Restart SQL Server.

To switch back from the previous version of the UK English word breaker to the current version

  1. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\CLSID.

  2. If the following keys do not exist, then use the following steps to add a new key for the COM ClassIDs for the current UK English word breaker and stemmer interfaces for LCID 2057:

    1. Add a new key with the value {9faed859-0b30-4434-ae65-412e14a16fb8} for the current word breaker.

    2. Update the (Default) data of that key value to MsWb7.dll.

    3. Add a new key with the value {e1e5ef84-c4a6-4e50-8188-99aef3de2659} for the current stemmer.

    4. Update the (Default) data of that key value to MsWb7.dll.

  3. In the registry, navigate to the following node: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRoot>\MSSearch\Language\eng.

  4. Update the WBreakerClass key value to {9faed859-0b30-4434-ae65-412e14a16fb8}.

  5. Update the StemmerClass key value to {e1e5ef84-c4a6-4e50-8188-99aef3de2659}.

  6. Restart SQL Server.

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