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Home / Glossary / DLL
Glossary · Other

DLL

Dynamic Link Library

In plain language

A file of reusable code that many Windows programs borrow instead of each carrying their own copy.

The metaphor

Like a shared toolbox in a workshop: every worker borrows the same hammer.

Going deeper

How it works

  • Programs load it when they start.
  • Updating one file can fix many apps.
  • Attackers plant fake ones.
  • A missing-file error means a program needs it.

What can go wrong (example scenario)

A staff member got a missing-file error and downloaded the file from a free site. The download carried malware.

How WILDCARD handles it

Patch Management keeps software current, and Workstation Defender watches protected computers for malware.

In practice
  • A program fails with a missing-file error.
  • A repair reinstalls the app.
  • A security tool flags a file in an odd folder.

A question owners ask

What if I get that error?

Reinstall the program or call your IT provider. Never download the file from a random site.

Where WILDCARD handles this
Patch
Management
  • Windows, Office, Chrome patched
  • Automatic, on schedule
  • Open doors closed
Start with Patch ManagementMeet Patch Management →
Enterprise
Antivirus
  • Stops ransomware cold
  • Catches fileless malware
  • Blocks zero-day attacks
Start with Enterprise AntivirusMeet Enterprise Antivirus →
Related terms
AIArtificial IntelligenceAPTAdvanced Persistent ThreatASLRAddress Space Layout RandomizationAVAntivirusCERTComputer Emergency Response TeamCIRTComputer Incident Response TeamCVECommon Vulnerability EnumerationCVSSCommon Vulnerability Scoring System

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