How do I fix "peer.dll is missing" error?

Reinstall the software that requires peer.dll, or install the latest drivers for your hardware.

Is it safe to download peer.dll?

Yes, when downloaded from official sources. We recommend installing the official Network package instead of downloading individual DLL files. This ensures you get a digitally signed, verified file directly from Microsoft.

Where should I put peer.dll?

For 64-bit applications, place in C:\Windows\System32. For 32-bit applications on 64-bit Windows, place in C:\Windows\SysWOW64. However, we strongly recommend using the official installer instead of manual placement.

Driver Version 1.0.0.0

Fix peer.dll Missing Error

Scanned: 2025-11-30

MD5 Verified

0.3M+ downloads

⚡ Quick Fix: Install Network

This is the recommended fix from Microsoft. It will restore peer.dll and all related runtime files automatically.

Download Official Package From Microsoft.com

Common Error Messages

✗ peer.dll is missing

✗ The program can't start because peer.dll was not found

✗ peer.dll was not found. Re-installing the application may fix this problem.

What is peer.dll?

PEER.dll - GameSpy peer-to-peer library

How to Fix "peer.dll is missing" Error

Manual Download (Last Resort)

⚠️ Important Warning

Downloading individual DLL files is not recommended. We strongly advise using the official runtime package above. Only use manual download if the official method fails.

If you must manually place the file:
• 64-bit apps: C:\Windows\System32
• 32-bit apps on 64-bit Windows: C:\Windows\SysWOW64