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How to Install Outlook VSTO Addin? RRS feed

  • Question

  • I get this error message when I install my OutlookCRMAddin.

    Customized functionality in this application will not work 
    because the certificate used to sign the deployment manifest for OutlookCRMAddin is not trusted.
    Contact your administrator for further assistance

    How to resolve this installation issue?



    Tuesday, February 26, 2019 9:21 AM

All replies

  • One way or another the certificate used to sign your addin must be trusted by the target machine.

    Dmitry Streblechenko (MVP)
    http://www.dimastr.com/redemption
    Redemption - what the Outlook
    Object Model should have been
    Version 5.5 is now available!

    Wednesday, February 27, 2019 3:39 AM
  • Hi Dmitry,

    I have an outlook mail with attachments. The attachment types are olByValue and olOLE.

    I could not save the olOLE attachment type to the local path using SaveAsFile(Path).

    is it possible to save such attachment type too?

    Monday, April 8, 2019 5:15 AM
  • Not in the Outlook Object Model - OLE attachments are structured storage (IStorage) blobs, not conventional file attachments - they essentially contain the data as well as the graphics used to represent it.

    If using Redemption is an option, it version of RDOAttachment.SaveAsFile extracts file data for all Office applications (Word, Excel, Powerpoint) as well as Adobe PDF, bitmaps, etc.


    Dmitry Streblechenko (MVP)
    http://www.dimastr.com/redemption
    Redemption - what the Outlook
    Object Model should have been
    Version 5.5 is now available!


    Monday, April 8, 2019 4:17 PM