rassapi.dll: download the file and fix the error

32-bit (x86) Microsoft® Windows® Operating System Scanned by antivirus

rassapi.dll is a file of the software Microsoft® Windows® Operating System (“Remote Access Admin APIs dll”), published by Microsoft Corporation. Version offered here: 5.1.2600.2180, 32-bit.

Programs that need it refuse to start, or show an error, when it is missing or damaged. Two methods can fix the error, below.

Method 1 · quick · about 1 minute

Download only rassapi.dll

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

⇓ Download rassapi.dll .zip file: the DLL + its instructions · downloaded 2,449 times

Version: 5.1.2600.2180
Architecture: 32-bit (x86)
Size: 16.9 KB
Publisher: Microsoft Corporation

Then:

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

SHA-256: 5bb81694700f8ad0b1da031e284fa46ab614fdd89410b921fd6700c23b01093e · Check on VirusTotal · Product: Microsoft® Windows® Operating System

Method 2 ·complete · depends on the program

Reinstall the program that shows the error

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

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

Error messages related to rassapi.dll

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

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