---
description: "DBCC dllname (FREE) (Transact-SQL)"
title: "DBCC dllname (FREE) (Transact-SQL) | Microsoft Docs"
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ms.date: "07/16/2017"
ms.prod: sql
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  - "dbcc_dllname_(FREE)_TSQL"
  - "dllname"
  - "dbcc dllname (FREE)"
  - "FREE"
  - "dbcc_dllname(FREE)_TSQL"
  - "FREE_TSQL"
  - "dllname_TSQL"
  - "dbcc dllname(FREE)"
dev_langs: 
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helpviewer_keywords: 
  - "DLL unloading [SQL Server]"
  - "DBCC dllname (FREE)"
  - "freeing DLLs"
  - "unloading DLLs"
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author: pmasl
ms.author: umajay
---
# DBCC dllname (FREE) (Transact-SQL)
[!INCLUDE [SQL Server](../../includes/applies-to-version/sqlserver.md)]
Unloads the specified extended stored procedure DLL from memory.
  
![Topic link icon](../../database-engine/configure-windows/media/topic-link.gif "Topic link icon") [Transact-SQL Syntax Conventions](../../t-sql/language-elements/transact-sql-syntax-conventions-transact-sql.md)
  
## Syntax  
```syntaxsql
DBCC <dllname> ( FREE ) [ WITH NO_INFOMSGS ]  
```  
  
[!INCLUDE[sql-server-tsql-previous-offline-documentation](../../includes/sql-server-tsql-previous-offline-documentation.md)]

## Arguments
 \<*dllname*>  
 Is the name of the DLL to release from memory.  
  
 WITH NO_INFOMSGS  
 Suppresses all informational messages.  
  
## Remarks
When an extended stored procedure is executed, the DLL remains loaded by the instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] until the server is shut down. This statement allows for a DLL to be unloaded from memory without shutting down [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]. To display the DLL files currently loaded by [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)], execute **sp_helpextendedproc**
  
## Result Sets  
When a valid DLL is specified, DBCC *dllname* (FREE) returns:
  
```sql
DBCC execution completed. If DBCC printed error messages, contact your system administrator.  
```  
  
## Permissions  
Requires membership in the **sysadmin** fixed server role or the **db_owner** fixed database role.
  
## Examples  
The following example assumes that `xp_sample` is implemented as xp_sample.dll and has been executed. DBCC \<*dllname*> (FREE) unloads the xp_sample.dll file associated with the `xp_sample` extended procedure.
  
```sql  
DBCC xp_sample (FREE);  
```  
  
## See Also  
[DBCC &#40;Transact-SQL&#41;](../../t-sql/database-console-commands/dbcc-transact-sql.md)  
[Execution Characteristics of Extended Stored Procedures](../../relational-databases/extended-stored-procedures-programming/execution-characteristics-of-extended-stored-procedures.md)  
[sp_addextendedproc &#40;Transact-SQL&#41;](../../relational-databases/system-stored-procedures/sp-addextendedproc-transact-sql.md)  
[sp_dropextendedproc &#40;Transact-SQL&#41;](../../relational-databases/system-stored-procedures/sp-dropextendedproc-transact-sql.md)  
[sp_helpextendedproc &#40;Transact-SQL&#41;](../../relational-databases/system-stored-procedures/sp-helpextendedproc-transact-sql.md)  
[Unloading an Extended Stored Procedure DLL](../../relational-databases/extended-stored-procedures-programming/unloading-an-extended-stored-procedure-dll.md)