Create .lib file from .dll file : Visual Studio

Keywords: Create .lib file from .dll file, Visual Studio, Programming


Recently I was working with a 3rd party win .dll file and having trouble to compile my code as I did not have required .lib file. Microsoft Visual Studio provides a way to create necessary .lib file form .dll file. Follow the steps given below to create .lib file from .dll file. 

Step 1: Open the Visual Studio Command Prompt

  Start ->Programs ->Microsoft Visual Studio -> Tools-> Visual Studio Command Prompt 

Step 2: Execute the ‘dumpbin‘ command to get a list of all exported functions of your .dll file.


For example, I have a .dll file techawarey.dll file in my C:\ drive so I’ll execute the command as :

dumpbin /exports C:\techawarey.dll

This will print quite a bit of text to the console. However we are only interested in the functions:

Microsoft (R) COFF/PE Dumper Version 10.00.30319.01Copyright (C) Microsoft Corporation.  All rights reserved. Dump of file C:\techawarey.dll File Type: DLL   Section contains the following exports for techawarey.dll     00000000 characteristics    4D41CCA9 time date stamp Fri Jan 28 01:21:05 2013        0.00 version           1 ordinal base

          10 number of functions

          10 number of names

    ordinal hint RVA      name

1    0 00017770 show_techawarey_logo

2    1 00017710 change_techawarey_logo

3    2 000176C0 create_techawarey_new_post

4    3 000156D0 delete_techawarey_new_post

5    4 00016D90 old_techawarey_old_post


Step 3: Copy all those function names (only the names) and paste them into a new text file.

Step 4: Name the text file ‘yourlib.def’ and put the line “EXPORTS” at its top.

For example, techawarey.def looks like as:







 Step 5: Now execute ‘lib‘ command to crate .lib file from .def file.

             <lib> </def:><path-of-def-file></OUT:><path-of-lib-file>

For example, lib /def:C:\techawarey.def  /OUT:C:\techawarey.lib

You should see an output like this:

c:\Program Files\Microsoft Visual Studio 10.0\VC>lib /def:C:\techawarey.def /OUT:D:\techawarey.libMicrosoft (R) Library Manager Version 10.00.30319.01Copyright (C) Microsoft Corporation.  All rights reserved.LINK : warning LNK4068: /MACHINE not specified; defaulting to X86   Creating library D:\techawarey.lib and object D:\techawarey.exp

Your .lib file is ready to use in your project now.  Please Like and Share…  😉 🙂

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