Cannot load FFMPEG library

i have this problem in Audacity 2.3.2. I put an “avformat-55.dll” file in the folder, set the path in preferences but ffmpeg codec still does not work. There are also some errors showing in the log after audacity startup but I don’t know how to interpretate them. Pasting the log below:

14:50:49: Audacity 2.3.2
14:50:49: Error: Couldn't find symbol 'AudacityModule' in a dynamic library (error 127: Nie można odnaleźć określonej procedury.)
14:50:51: Trying to load FFmpeg libraries...
14:50:51: mLibAVFormatPath ('C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\avformat-55.dll') is not empty. Loading from it.
14:50:51: Looking up PATH environment variable...
14:50:51: PATH = 'C:\PROGRAM FILES\DELL\DW WLAN CARD;C:\PROGRAM FILES (X86)\INTEL\ICLS CLIENT\;C:\PROGRAM FILES\INTEL\ICLS CLIENT\;C:\PROGRAM FILES (X86)\COMMON FILES\ORACLE\JAVA\JAVAPATH;C:\PROGRAMDATA\ORACLE\JAVA\JAVAPATH;C:\Windows\SYSTEM32;C:\Windows;C:\Windows\SYSTEM32\WBEM;C:\Windows\SYSTEM32\WINDOWSPOWERSHELL\V1.0\;C:\Windows\SYSTEM32\WINDOWSPOWERSHELL\V1.0\;C:\PROGRAM FILES (X86)\INTEL\OPENCL SDK\2.0\BIN\X86;C:\PROGRAM FILES (X86)\INTEL\OPENCL SDK\2.0\BIN\X64;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT'
14:50:51: Checking that 'C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit' is in PATH...
14:50:51: Warning: FFmpeg directory 'C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit' is not in PATH.
14:50:51: Temporarily prepending ';C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit' to PATH...
14:50:51: Checking for monolithic avformat from 'C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\avformat-55.dll'.
14:50:51: Error: Failed to load shared library 'C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\avformat-55.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Loading avutil from ''.
14:50:51: Error: Failed to load shared library '.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Loading avcodec from ''.
14:50:51: Error: Failed to load shared library '.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Loading avformat from 'C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\avformat-55.dll'.
14:50:51: Error: Failed to load shared library 'C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\avformat-55.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Returning PATH to previous setting...
14:50:51: Error: Failed to load FFmpeg libraries.
14:50:51: Trying to load FFmpeg libraries from system paths. File name is 'avformat-55.dll'.
14:50:51: Looking up PATH environment variable...
14:50:51: PATH = 'C:\audacity\ffmpeg\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit\FFmpeg_v2.2.2_for_Audacity_on_Windows_64bit;C:\PROGRAM FILES\DELL\DW WLAN CARD;C:\PROGRAM FILES (X86)\INTEL\ICLS CLIENT\;C:\PROGRAM FILES\INTEL\ICLS CLIENT\;C:\PROGRAM FILES (X86)\COMMON FILES\ORACLE\JAVA\JAVAPATH;C:\PROGRAMDATA\ORACLE\JAVA\JAVAPATH;C:\Windows\SYSTEM32;C:\Windows;C:\Windows\SYSTEM32\WBEM;C:\Windows\SYSTEM32\WINDOWSPOWERSHELL\V1.0\;C:\Windows\SYSTEM32\WINDOWSPOWERSHELL\V1.0\;C:\PROGRAM FILES (X86)\INTEL\OPENCL SDK\2.0\BIN\X86;C:\PROGRAM FILES (X86)\INTEL\OPENCL SDK\2.0\BIN\X64;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL;C:\PROGRAM FILES\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\IPT;C:\PROGRAM FILES (X86)\INTEL\INTEL(R) MANAGEMENT ENGINE COMPONENTS\DAL'
14:50:51: Checking that '' is in PATH...
14:50:51: FFmpeg directory is in PATH.
14:50:51: Checking for monolithic avformat from 'avformat-55.dll'.
14:50:51: Error: Failed to load shared library 'avformat-55.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Loading avutil from ''.
14:50:51: Error: Failed to load shared library '.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Loading avcodec from ''.
14:50:51: Error: Failed to load shared library '.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Loading avformat from 'avformat-55.dll'.
14:50:51: Error: Failed to load shared library 'avformat-55.dll' (error 126: Nie można odnaleźć określonego modułu.)
14:50:51: Error: Failed to load FFmpeg libraries.
14:50:51: Error: Failed to find compatible FFmpeg libraries.

Are you sure that’s the version that you have? (Look in “Help menu > About Audacity”).

The current version of Audacity is 3.1.3, but it may not work in Windows 7 (is that really your version of Windows? Windows 7 is obsolete.)

Audacity 2.3.2 is a 32-bit app and requires the 32-bit version of FFmpeg for Audacity.
Audacity 3.1.3 usually 64-bit (though there is a 32-bit version available for people using 32-bit Windows 10). 64-bit versions of Audacity require the 64-bit version of FFmpeg.

If you really do have (32-bit) Audacity 2.3.2, then you will either need to use the 32-bit version of FFmpeg, or update Audacity to the current (64-bit) version.