m2m

Environment

• VerneMQ Version: 1.11.0
• OS:
  Distributor ID: Ubuntu
  Description: Ubuntu 18.04.5 LTS
  Release: 18.04
  Codename: bionic
• Erlang/OTP version (if building from source): 19
• VerneMQ configuration (vernemq.conf) or the changes from the default
• Cluster size/standalone:

Expected behaviour

Connection to Redis server running on unixsocket, configured within Lua scr

Is your feature request related to a problem? Please describe.

When starting a nodejs process with pm2 using node-opcua on Windows 10 a Windows Prompt windows pops ups each time when "node-opcua-pki" package runs child_process.exec() method. The exec process is calling openssl.
There are two occurances: lib/misc/install_prerequisite.ts:98 and lib/pki/toolbox.js:123

**Describe