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How to open .zip attachments in Adobe Reader

Adobe Reader does not allow opening .zip file attachments directly from Adobe Reader. Attachments represent a potential security risk because they can contain malicious content, open other dangerous files, or launch applications. However, if you need this option there is a workaround to enable it by editing registry data:
  1. 1.
    Click Start and find Run application
  2. 2.
    In the Open box type "regedit" and click OK to open Registry Editor
  3. 3.
    In Registry Editor navigate to the following registry key: HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms
  4. 4.
    Double-click on sBuiltInPermList
  5. 5.
    In the Value data field, locate the .zip file type extension
  6. 6.
    Change the number directly after the .zip file type extension to 1 and click OK
Reopen Adobe Reader and now you should be able to open .zip file attachments directly from Adobe Reader.