If you need to uninstall the QuickBooks Web Connector follow these instructions. You can always download the QWC file again by following these instructions

1. Have a Server Admin click the Start Button
2. Type “control” in the search field then click Control Panel.
3. Click Uninstall a program if under the Category view or Programs and Features if under the Small icons view.
4. Select Web Connector and click Uninstall. Note: If you can’t find QuickBooks Web Connector in the Control Panel, delete the QBWebconnector folder in the following location using a File Explorer window (folder icon on your Task Bar): C:\Program Files(x86)\Common Files\Intuit\QuickBooks\ or C:\Program Files\Common Files\Intuit\QuickBooks\

After uninstalling we recommend restarting the server.