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x400prox.dll: download the file and fix the error

32-bit (x86) Microsoft Exchange Scanned by antivirus

x400prox.dll is a file of the software Microsoft Exchange (“Microsoft Exchange Server - DLL de génération de proxy X400”), published by Microsoft Corporation. Version offered here: 6.5.7638.1, 32-bit.

An error message appears when the program concerned starts if this file is missing, deleted or corrupted. Two methods can fix the error, below.

Method 1 · quick · about 1 minute

Download only x400prox.dll

Ideal if only this file is reported missing: you replace a single file, without reinstalling anything.

⇓ Download x400prox.dll .zip file: the DLL + its instructions · downloaded 2,076 times
Version
6.5.7638.1
Architecture
32-bit (x86)
Size
87.55 KB
Publisher
Microsoft Corporation

Then:

  1. Extract x400prox.dll from the zip file and copy it to the folder of the program showing the error (where its .exe file is).
  2. Still getting the error? Copy it to C:\Windows\SysWOW64 (64-bit Windows) or C:\Windows\System32 (32-bit Windows), then restart.

SHA-256: 69bffc5bcbcc1877f332bf0444d62cd4b4aa2ddc8fdb20046e293b4a76840082 · Check on VirusTotal · Product: Microsoft Exchange

Method 2 ·complete · depends on the program

Reinstall the program that shows the error

The program normally provides x400prox.dll itself, in the exact version it expects. Recommended if several files are missing or if the error comes back.

  1. Settings › Apps › Installed apps: uninstall the program or game concerned.
  2. Reinstall it from its original setup program, then restart your computer.

Error messages related to x400prox.dll

  • The program can't start because x400prox.dll is missing.
  • Error loading x400prox.dll. The specified module could not be found.
  • Failed to load x400prox.dll

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