fsisu.dll: download the file and fix the error

32-bit (x86) F-Secure Setup SDK Scanned by antivirus

fsisu.dll is a file of the software F-Secure Setup SDK (“F-Secure Installation Support DLL”), published by F-Secure Corporation. Version offered here: 5.20.624, 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 fsisu.dll

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

⇓ Download fsisu.dll .zip file: the DLL + its instructions · downloaded 2,181 times

Version: 5.20.624
Architecture: 32-bit (x86)
Size: 221.18 KB
Publisher: F-Secure Corporation

Then:

Extract fsisu.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: 6055d86c5ac66645f868ecb7be61d1838adc7f3a24880b137d046adcd2e675ef · Check on VirusTotal · Product: F-Secure Setup SDK

Method 2 · complete · depends on the program

Reinstall the program that shows the error

The program normally provides fsisu.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 fsisu.dll

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

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