April 2006
Intermediate to advanced
32 pages
54m
English
Content preview from Use ClickOnce to Deploy Windows ApplicationsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Updating Unmanaged Components Using RegFree COM
Visual Studio 2005 includes a new feature called RegFree COM (Registration-Free COM). Using RegFree COM, you can deploy an application that uses a COM component without needing to register it on the user's machine, so you avoid the notorious problems of "DLL hell." You can even have multiple versions of the COM component running side by side on the same machine.
Tip
RegFree COM works by automatically generating a manifest from the COM component's type library and component registration on the developer's machine. Therefore, while you're not required to install the component on your users' machines, a copy must be registered on the developer's machine.
To support RegFree COM, all COM components referenced in Visual
Studio 2005 have a new Isolated
property. If you set Isolated to
True, then the component can be
deployed through ClickOnce and Visual Studio 2005 will automatically do
all of the work to deploy the COM component onto the target machine
(without needing to register it on the target machine).
As an example, you can drag and drop an OCX control (such as
Acrobat's PDF viewer control) onto your form and, under the References
section in Solution Explorer (click the Show All Files button located
second from left at the top of Solution Explorer), view the properties
of the control (AxAcroPDFLib; see Figure 1-19), and set its
Isolated property to True.
Figure 1-19. Setting the Isolated
property of an OCX control for RegFree COM
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.