Outlook Plug-in Troubleshooting

If you are experiencing issues, we recommend following the instructions outlined below. If you encounter an issue not yet identified, please contact us.

Issue: Outlook Error ‘Attachment size exceeds the allowable limit’

Outlook Message

Issue: ‘Outlook blocked access to the following potentially unsafe attachments.’

Issue: Plugin does not appear in Outlook

  1. Restart Outlook
  2. Install/Repair Visual Studio Tools for Office 2010
  3. Missing Registry Entry (32-bit & 64-bit Operating Systems)
    1. HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion
    2. ../Run (Name) SendThisFile (String)
      C:\Program Files\SendThisFile\SendThisFile.Daemon.exe
    3. ../Policies/System (Name) EnableLinkedConnections (Hex) 1
    4. HKLM/Software/Microsoft/Office/Outlook/Addins
    5. ../SendThisFile
      1. (Name) Description (String) SendThisFile Outlook Plugin
      2. (Name) FriendlyName (String) SendThisFile Outlook Plugin
      3. Name) LoadBehavior (Hex) 3
      4. (Name) Manifest (String)
  4. Missing Registry Entry (changes specific to 64-bit Operating Systems)
    1. Change 3e Manifest String to C:\ProgramFiles(x86)\SendThisFile\SendThisFile.vsto|vstlocal

Issue: SendThisFile icon shows ‘Connecting,’ ‘Unable to login,’ or ‘Log Error: Error listening port: Access Denied’

  • Due to Windows User Access Control, or if you are not an administrator, Windows blocks access to the port that the Outlook plugin uses to talk to the Transfer Manager. Follow these steps to open the port:
    Steps for Windows 7 or higher

    1. Close Outlook
    2. Close Transfer Manager (found in the system tray, right click and click exit)
    3. Launch the Run program (click on the Start Menu, in the search field type ‘Run’ and choose the ‘Run’ program from the search results list)
    4. In the ‘Run’ program type in the following line into the ‘Open’ field
      C:\Program Files (x86)\SendThisFile\runcommand.exe 8789
      Screen Shot 2014-01-09 at 10.41.13 AM
    5. Launch Transfer Manager (Click on Start Menu, in the search field type ‘Transfer Manager’ and choose it from the search results list)
    6. Launch Outlook
    7. The Outlook plugin should now communicate with SendThisFile as indicated by displaying ‘Connected’ under the SendThisFile logo.
  • Windows 7 Advanced users, from a command line in Windows Vista/7 Netsh http add urlacl url=http://*:8789/ user=USERS listen=yes
  • Windows XP
    • Httpcfg.exe set urlacl /u http://*:8789/ /a

Issue: Personal Option is available when selecting a format

  • The registry key is missing:
    (Name) ShowPersonal (String) 0

Issue: Transfer Manager will not run

  • Make sure Full .Net 4 is installed
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