Outlook plugin - common issues

In This Article

  • Outlook plugin not installing
  • Outlook button disappearing
  • Fixing Outlook Install Error "General Installer error"
  • Fixing "Specified Argument was out of range of valid values. Parameter name: entryvalue"

Outlook plugin not installing

  1. Open Internet Explorer
  2. Click Settings (cog in top right)
  3. Click Internet Options
  4. Then Advanced (far right tab)
  5. Then Reset
  6. Then Reset again
  7. Then Close
  8. Retry The Outlook Plugin

Outlook plugin is still not working:

  1. Open Internet Explorer
  2. Click Settings (cog in top right)
  3. Click Internet Options
  4. Then click Security (second tab)
  5. Then “Trusted Sites” (green Tick)
  6. Then click Sites
  7. Add https://go.intouchapp.co.uk

Outlook plugin button disappears

If your InTouch button is missing inside of Outlook then it may be caused by Outlook not loading quick enough.

A quick workaround is to re-enable the disabled addin.

In Outlook go to File => Info => Manage Add-ins

However, it may be that you have a slow computer or laptop. If this problem persists we recommend speaking to your IT support and getting better equipment.


Fixing Outlook Install Error "General Installer error"

  1. Go to Control Panel (Windows Start Menu > Control Panel) and search for Uninstall a Program.
  2. In the list of installed programs find Microsoft Visual Studio 2010 Tools for Office Runtime (VSTO). If it is not there go to step 4.
  3. Click Repair option and wait for repair to complete. Is Repair is disabled proceed to next step.
  4. If VSTO isn't in the list of installed programs or there's no option to repair, go to the following link, click Download and install the Tools for Office Runtime : https://www.microsoft.com/en-us/download/details.aspx?id=48217
  5. Once the above steps are complete, install the Outlook plugin again.

Fixing "Specified Argument was out of range of valid values. Parameter name: entryvalue"

Specified Argument was out of range of valid values. Parameter name: entryvalue

This error occurs because a cached value is not in the format expect by the Microsoft ClickOnce installer.

To resolve this issue: 

  1. Close all Outlook windows
  2. Open File Explorer and navigate to %localappdata%\apps _ _- Note you may need to show hidden files and folders to view and delete this folder show hidden files and folders
  3. There should be a folder name 2.0., delete this folder (this clears the ClickOnce cache)
  4. Install the add-in

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