"xmlsec.exe stopped working" error when trying to execute command - is my xmlsec setup faulty?

So, I'm trying to sign an XML file through XmlSec, and when I press enter in order to execute this line written in Command Prompt:

xmlsec --sign --pkcs12 FISKAL.p12 --pwd password --trusted-pem root_ca.pem --id-attr:Id Request --id-attr:Id Reference --output signedfile.xml file.xml

I get a Windows error of "xmlsec.exe stopped working". I suppose my installation of this program, which I am very much not used to, could have been wrong? I downloaded "libxmlsec-1.2.18.win32.zip" from zlatkovic.com, unzipped it, and added the following files to the "bin" folder of the unzipped package (where xmlsec.exe is):

• iconv.dll
• libexslt.dll
• libxml2.dll
• libxmlsec.dll
• libxmlsec-mscrypto.dll
• libxmlsec-openssl.dll
• libxslt.dll
• zlib1.dll

Since Command Prompt seemed to recognize the program when typing and executing only xmlsec, I thought it was fine. Should I do something differently? What else could be the problem?

I thank everyone very much in advance for all assistance regarding my problem.

Updating with the solution I've found, in case someone finds themselves in a similar (silly) situation:

The setup was fine. The problem was that I had been trying to run the 32-bit version of xmlsec on 64-bit Windows. Make sure you've downloaded the right binaries from zlatkovic.com (the "64-bit" folder of his directory contains the right versions of xmlsec - "xmlsec1" - and all the other necessary binaries).

And don't forget to add the bin folder to the PATH environment variable!