Determining the CPU architecture of a static library (LIB) on Windows

Question

I just built libpng on a 64-bit Windows machine using VS2008. It produces a libpng.lib file inside the \\projects\\visualc71\\Win32_Lib_Release directory (Confi

Answer 1

Use dumpbin /headers

The machine type is almost the first line you'll get.

It will be 14c for x86 and 8664 for x64

n:>dumpbin lib642.lib /headers

Microsoft (R) COFF/PE Dumper Version
10.00.30319.01 Copyright (C) Microsoft Corporation. All rights reserved.

Dump of file lib642.lib

File Type: LIBRARY

FILE HEADER VALUES 8664 machine (x64

Or

n:>dumpbin Lib32.lib /headers

Microsoft (R) COFF/PE Dumper Version
10.00.30319.01 Copyright (C) Microsoft Corporation. All rights reserved.

Dump of file Lib32.lib

File Type: LIBRARY

FILE HEADER VALUES 14C machine (x86)