diag.dll: download the file and fix the error

32-bit (x86) ACT! for Windows Scanned by antivirus

diag.dll is a file of the software ACT! for Windows (“ACT! Library”), published by Interact Commerce Corporation. Version offered here: 6.0.0.679, 32-bit.

If this file is missing or damaged, the program that uses it does not start and Windows displays an error message. Two methods can fix the error, below.

Method 1 · quick · about 1 minute

Download only diag.dll

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

⇓ Download diag.dll .zip file: the DLL + its instructions · downloaded 2,213 times

Version: 6.0.0.679
Architecture: 32-bit (x86)
Size: 24.58 KB
Publisher: Interact Commerce Corporation

Then:

Extract diag.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: a5e00b82bc00e552ea22205c64a632012d89d28c79cc959220c9922b6a4b95da · Check on VirusTotal · Product: ACT! for Windows

Method 2 · complete · depends on the program

Reinstall the program that shows the error

The program normally provides diag.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 diag.dll

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

Nearby DLL files

diablohook.dll diactfrm.dll diadvpcl812.dll diadvpcl818.dll diagER.dll diagent.dll diagnos2.dll diagnostic.dll