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title -libpath
ms.date 03/10/2018
ms.prod .net
ms.suite
ms.technology
devlang-visual-basic
ms.topic article
helpviewer_keywords
libpath compiler option [Visual Basic]
/libpath compiler option [Visual Basic]
-libpath compiler option [Visual Basic]
ms.assetid 5f1c26c9-3455-4e89-bdf3-b12d6c2e655b
author rpetrusha
ms.author ronpet

-libpath

Specifies the location of referenced assemblies.

Syntax

-libpath:dirList

Arguments

Term Definition
dirList Required. Semicolon-delimited list of directories for the compiler to look in if a referenced assembly is not found in either the current working directory (the directory from which you are invoking the compiler) or the common language runtime's system directory. If the directory name contains a space, enclose the name in quotation marks (" ").

Remarks

The -libpath option specifies the location of assemblies referenced by the -reference option.

The compiler searches for assembly references that are not fully qualified in the following order:

  1. Current working directory. This is the directory from which the compiler is invoked.

  2. The common language runtime system directory.

  3. Directories specified by /libpath.

  4. Directories specified by the LIB environment variable.

The -libpath option is additive; specifying it more than once appends to any prior values.

Use -reference to specify an assembly reference.

To set /libpath in the Visual Studio integrated development environment
1. Have a project selected in Solution Explorer. On the Project menu, click Properties.
2. Click the References tab.
3. Click the Reference Paths... button.
4. In the Reference Paths dialog box, enter the directory name in the Folder: box.
5. Click Add Folder.

Example

The following code compiles T2.vb to create an .exe file. The compiler looks in the working directory, in the root directory of the C: drive, and in the New Assemblies directory of the C: drive for assembly references.

vbc -libpath:c:\;"c:\New Assemblies" -reference:t2.dll t2.vb

See Also

Assemblies and the Global Assembly Cache
Visual Basic Command-Line Compiler
Sample Compilation Command Lines