PrintNumber	ErrorLocation	Error	Correction	DateAdded
	pvi	First printing May 2009	Fourth Printing May 2010	1/6/2010
	p817	Because Excel is a COM-based application it cannot communicate directly with code written in .NET.All .NET code that communicates with Excel must cross the .NET ‹ COM boundary.	Should be an arrow between .NET and COM at the end of the sentence.	5/7/2010
	p863	However, given access to desktop virtualization software such as WMware (commercial software) and Microsoft Virtual PC (free tool) it is now much easier for developers to use the same versions of software as the end users they develop for.	However, given access to desktop virtualization software such as VMware (commercial software) and Microsoft Virtual PC (free tool) it is now much easier for developers to use the same versions of software as the end users they develop for.	5/7/2010