Error: "Cannot call Invoke or BeginInvoke on a control until the window handle has been created" when launching Act! with the Sage Accounting Link installed

Symptom: Error: "Cannot call Invoke or BeginInvoke on a control until the window handle has been created" when launching Act! with the Sage Accounting Link installed.

Product Details: 
Product Family: Act!
Product: Act! Pro (UK Only)
Version: 2013
Integration: Sage Accounting Link

Environment:
OS: Windows Vista and later Third Party: Sage Accounts

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Cause: This issue is caused by User Account Control in Microsoft Windows

Solution: 

1. Close Act!
   
2. Locate your Act! program icon on your computer's Desktop or Start menu
   
3. Right-click on the icon and select Properties
   
4. Under the Compatibility tab, check the box for "Run this program as an administrator"
   
5. Click Apply, then click OK to save
   
6. Open Act! to test issue