Selenium Is Not Installed or Properly Configured

When you click Run WhatsApp BOT, you might see this message:

Selenium Setup Required error message in WhatsApp Blaster

This means Excel cannot find VBA Selenium. In almost every case it is because the Selenium setup was not fully completed.

First, do this: Go back through the setup tutorial from start to finish and make sure you did not miss a step.

Full guide: pythonandvba.com/whatsapp-pro-tutorial

Already set up VBA Selenium but still get the error? #

Work through the steps below in order. Stop as soon as the error is gone.

Step 1: Reinstall SeleniumBasic as administrator

Installing it normally is often not enough. It needs to be installed as administrator.

Close Excel completely.
Download SeleniumBasic again here: SeleniumBasic v2.0.9.0.
Right-click the downloaded installer and choose “Run as administrator”. Let it finish.
Open the WhatsApp Blaster file again and click Run WhatsApp BOT.

If the error is gone, you are done. If not, go to Step 2.

Step 2: Register Selenium manually

If reinstalling did not help, you can register the Selenium file by hand.

Press the Windows key, type cmd, then right-click Command Prompt and choose “Run as administrator”.
Copy the line below, paste it into the black window, and press Enter:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\regasm.exe /codebase "C:\Users\YOUR_USERNAME\AppData\Local\SeleniumBasic\Selenium.dll"

Important: Replace YOUR_USERNAME with your real Windows username. Everything else stays exactly the same.

Choose the registration tool for your Excel bitness: use Framework for 32-bit Excel, including on 64-bit Windows; use Framework64 for 64-bit Excel. Check File > Account > About Excel. A command existing on disk does not prove it matches your Excel installation.

When it works you will see “Types registered successfully”:

Command Prompt showing Types registered successfully after running regasm as administrator

Now open WhatsApp Blaster and try again. Still no luck? Go to Step 3.

Step 3: Turn on .NET framework 3.5

On Windows 11 the .NET Framework 3.5 is often switched off by default, and Selenium needs it to run.

Press the Windows key and type Turn Windows features on or off, then open it.
Tick the box for “.NET Framework 3.5 (includes .NET 2.0 and 3.0)”.
Click OK and let Windows install it. Restart your PC if it asks you to.

Turn Windows features on or off dialog with .NET Framework 3.5 ticked

Open WhatsApp Blaster and click Run WhatsApp BOT. The error should now be gone.

Once the error is gone, you are ready to start sending.