Environment
- App Control Agent: 8.6.0 and below
- Microsoft Office 365: All Versions
Symptoms
- Unable to run Office 365 updates
- App Control Agent blocking C2R64.dll and C2R32.dll files during O365 updates
- App Control Agent unable to hash O365 binaries
- Blocked events logged with description "File 'c:\program files\common files\microsoft shared\clicktorun\updates\16.0.12527.21416\c2r64.dll' [ ] was blocked because it was unapproved"
Cause
Parity driver is unable to hash c2r64.dll due to a non-existing path error encountered while resolving the file path.
Resolution
This issue was tracked under EP-11546 and related to EP-12850 which was fixed with the release of Agent 8.6.2: Fixed an issue that could block the starting of Office Applications after Office is updated using ClickToRun.
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