I gave a chat in Mountain see on southern area Bay .Net individual class conference on August 5th. It was a standard talk about ClickOnce Deployment and ways to utilize it. Almost everyone within the room was actually a Windows paperwork or WPF developer, which looks rarer and rarer these days as someone migrate to web programs. There had been most questions, and plenty of close debate about points that men and women would like changed in ClickOnce implementation.
By far the most frequently requested element where appointment as well as in the MSDN ClickOnce discussion board is install a ClickOnce program for several customers instead of a specific individual.
This can be difficult since data files were kept in an individual’s profile, where the user features read/write rights. Among the design purpose of ClickOnce will be provide a deployment approach which enables consumers to set up applications without increased privileges. Installing an application for all consumers requires benefits.
Another style purpose were to shield your client device from issues brought on by computer software installations. Do you really remember a€?dll hella€?? It was the trouble that occurred whenever another application arrived and replaced a dll that you were influenced by, and caused problems for your application, or vice versa.
In a ClickOnce deployment, you’re able to feature a good many dll’s locally making use of deployment, rather than installing all of them in GAC or perhaps the microsoft windows program index. (this really is excluding, needless to say, the .NET platform as well as other prerequisite software instance SQLServer present.) You may also deploy the SQL lightweight version dll’s or DirectX dll’s. This permits one maintain tight adaptation regulation in the dll’s you use in the implementation. Microsoft would have to decide a method to handle this in the event the program comprise implemented regarding users; if they just weren’t cautious, you could quickly land in dll hell once more.
Alternatively, as long as they simply made a decision to put the data within the each customers visibility, again you have the permissions difficulty that Microsoft desired to address with ClickOnce implementation, considering that the user can not compose to people data without higher privileges. Additionally, If Microsoft stored the deployed data for the a€?All Usersa€? folder, they will need certainly to determine what accomplish if UserA is logged on utilising the program, and then UserB signed on there got an update readily available. Do you ever start UserA? Do you forego the enhance because UserA is already working the application form? What exactly is UserA constantly actually leaves their account logged on? How will you ever before create an update?
This request has become passed on to Microsoft, but You will findn’t heard about any plans to integrate a big change for this in .NET 4.0, so I wouldn’t count on any fast listings. Creating an all-users install are counter toward design purpose of ClickOnce implementation, and so I envision it’s going to be something all of us have to reside with, about for now. Making use of XCopy or a setup & implementation plan and running your own personal progressive up-date methodology is the route to take should you absolutely need an All Users construction.
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