Windows Update Pegasus XRL VB Runtime Error 429 – Fix

A recent Windows Update to MS Office 16 can cause the above issue with Pegasus XRL.

To fix this:

Disable updates in MS Office and use MS Office with a build of 16.0.8229.2073.

To achieve this, follow the steps below: –

  1. Open an Excel spreadsheet and navigate to File>Account>Office Updates>Update Option and select ‘Disable Updates’.
  2. Close Excel and any other MS Office applications.
  3.  With Administrator permissions, Open the Command window.
  4. In the Command window, run the command;
  5. CD “<C:\Program Files\Common Files\Microsoft Shared\ClickToRun>”
  6. Then run the command: OfficeC2RClient.exe /update user updatetoversion=16.0.8229.2073


The commands, in points 4 and 5 above, must be typed exactly as stated, paying particular attention to spaces and quotes.

This process will trigger Microsoft to download and update your current build and normally takes a few minutes.

Once completed, check the build version by opening an Excel spreadsheet and navigating to File>Account>About Excel.


If you need any additional help, don’t hesitate to give us a call.