iphlpapi.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Discover information about iphlpapi.dll, its role in network management, and troubleshooting tips. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	other	️ Not detected
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	ℹ️ Unverified	File Hash protection is missing.
File size	9.5 kb.	9752 bytes.

Hashes:

MD5: f17eaffe576ded9624f9641d5ffabc32
SHA-1: a2bbc3c4be584df1d98de98b0651b49a55bddea3
SHA-256: 944c772125076d899685fbd9fed1d5be2ce6f9669233208a34c56acea098dc6b
SHA-512: 50ec10c20ce4f57206818992f49a48f4f9651ab6172c4b8fa6c6364c1059707ed1da3e7cdf0d077d436c2062339cbf961f651dad37683f67723ab392c531804a

How to Fix Iphlpapi.dll Errors Without Downloading

You can fix iphlpapi.dll errors safely using built-in Windows tools. Downloading individual DLL files from third-party websites risks malware infections and version mismatch errors.

Here is how to repair the file using secure, official methods.

Step 1: Run SFC and DISM Repairs

Windows has built-in tools to find and replace corrupted system files automatically.

Press the Windows Key.
Type cmd.
Right-click Command Prompt.
Select Run as administrator.
Type sfc /scannow and press Enter.
Wait for the scan to finish.
Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
Restart your computer.

Step 2: Reinstall the Problematic Program

If the error only happens when opening a specific app or game, that program's local file copy is corrupted.

Open Settings (Windows Key + I).
Go to Apps > Installed apps.
Find the program causing the error.
Click the three dots and select Uninstall.
Reinstall the program from its original official source.

Step 3: Update Network Drivers

The iphlpapi.dll file handles IP helper API functions for network connections. Outdated network drivers can trigger this error.

Right-click the Start Menu and select Device Manager.
Expand the Network adapters section.
Right-click your primary network card (Wi-Fi or Ethernet).
Select Update driver.
Choose Search automatically for drivers.

Step 4: Install Pending Windows Updates

Microsoft regularly pushes patches that fix broken system DLL files.

Open Settings.
Click Windows Update.
Click Check for updates.
Download and install all available updates.
Restart your PC.

📊 Diagnostics Tool: Verify Your `iphlpapi.dll` File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Other versions:
️ iphlpapi.dll 10.0.19041.3636 32-bit (x86) | ️ iphlpapi.dll 10.0.19041.3636 64-bit (x64)
Similar files:
️iphlpapi.dll.mui