Add-in Installation Error HRESULT -2146697208

After an install attempt we received an error that pointed to a setup log file as follows:

When checking the log, after scrolling to the bottom of the document you will see the text "URLDownloadToCacheFile failed with HRESULT ‘-2146697208’

The fix for this was found here - but follow the below steps to resolve the error.

  1. Open the Registry by clicking on the Start button and searching “RegEdit

  2. Navigate to [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings and within that folder locate the item called “DisableCachingOfSSLPages”

  1. Right click on DisableCachingOfSSLPages and click “Modify” and the below dialog will pop up. This value may be “1”, so change that value to “0” and click OK.

  1. DisableCachingOfSSLPages should now say 0x00000000 (0)

  1. Once this is completed, delete the .exe file and re-download from

  2. Upon running this you should be all set, but in some cases you may get the below error:


  1. This error can be resolved here at this link - Error: The value of the property ‘type’ cannot be parsed