Immediate panics in Deno and Bun on Windows

[0xNF]

Describe the bug The code below will only run in node.js, and will crash both Deno and Bun.

Reproducing

import * as zmq from "zeromq";

const addr_ipc = "ipc://C:/Users/nf/Desktop/myfilelol";
const addr = addr_ipc;

async function run() {
  const sock = new zmq.Reply()

  await sock.bind(addr)
  console.log('bound to ipc socket');

  for await (const [msg] of sock) {
    const j = fromBytes(msg);
    console.log(j.strField);
    await sock.send(j.strField)
  }
}
run();



function fromBytes(buffer) {
  const s = buffer.toString();
  const j = JSON.parse(s);
  return j;
}

specs:

Bun

Bun v1.2.3 (8c4d3ff8) Windows x64
Windows v.win11_dt
CPU: sse42 avx avx2 avx512

Deno

deno 2.2.1 (stable, release, x86_64-pc-windows-msvc)
v8 13.4.114.9-rusty
typescript 5.7.3

Node

v18.16.0

Expected behavior Not to crash, and to produce the same output that node does, which is to bind correctly and print incoming messages.

Tested on

Edition	Windows 11 Pro
Version	24H2
Installed on	‎1/‎8/‎2025
OS build	26100.2894
Serial number	0F00NUH220700C
Experience	Windows Feature Experience Pack 1000.26100.36.0

• OS: Windows 11
• ZeroMQ.js version: 6.3.0

See also, the issues for Deno (denoland/deno#18345) and Bun (oven-sh/bun#17592), and potentially related issues here (#599)

[aminya]

Bun and Deno are not officially supported as of now.
We have to add CI for it and test them to know their state.

For Windows, this is possibly related:

zeromq.js/CMakeLists.txt

Line 167 in 4e561cf

set_property(TARGET addon PROPERTY LINK_FLAGS "-Xlinker /DELAYLOAD:NODE.EXE")