Depends

Introduction

🏡 Dependency Walker is a free utility that scans any 32-bit or 64-bit Windows module (exe, dll, ocx, sys, etc.) and builds a hierarchical tree diagram of all dependent modules. For each module found, it lists all the functions that are exported by that module, and which of those functions are actually being called by other modules. Another view displays the minimum set of required files, along with detailed information about each file including a full path to the file, base address, version numbers, machine type, debug information, and more. (Text from the website).



See also the Wikipedia page.

Using

Download, install, start. From the File menu select the dll or executable to be analysed. In the example below the dll ExtIOmc_ELAD_FDMDUO.dll is being analysed.



Errors

You can ignore the errors shown below.

• Error: At least one required implicit or forwarded dependency was not found.
• Warning: At least one delay-load dependency module was not found.
• Warning: At least one module has an unresolved import due to a missing export function in a delay-load dependent module.



More

If an essential dll on which ExtIOmc_ELAD_FDMDUO.dll depends cannot be found the corresponding folder (top left) will be shown in red. In the image below all dlls:

📁 WINUSB,

📁 SETUPAPI,

📁 KERNEL32,

📁 USER32 and

📁 SHELL32

can be loaded, all is good.