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.NET Forum / .NET Framework / Interop / December 2003Calling out-of-proc COM object from ASP.NET
Anybody here can shed some light on this issue? Is it at all possible to call out-of-proc COM objects from ASP.NET? If yes, what configuration settings are required? I played around many hours already trying to get all security settings done (as I did not find specific informations I followed the general rules for getting ASP to work with out-of-proc COM objects). Any help would be highly appreciated! I am running on Win2K German and VS.NET 2002 and .NET Framework 1.0; if migration to .NET 1.1 and VS.NET 2003 solves my problem it would be fine but I don't want to upgrade yet unless it really solves the problem. -- Martin Knopp fecher GmbH email: Martin.Knopp@fecher.at web: http://www.fecher.at -- Alle Dienstleistungen von fecher im ?berlick! http://www.fecher.at/services/ -- -- Gupta Roadmap f?r SQLBase und Team Developer mit Themen wie Unicode, Linux und .NET - informieren Sie sich hier: http://www.fecher.at/GuptaRoadmapJuly2003 -- -- Windows style web application powered by Team Developer, Building Blocks XP and ASP.NET here: http://www2.fecher.de/islandweb/ -- -- fecher ist Premium Partner der Firma Gupta und bietet Ihnen alle Produkte und Dienstleistungen in diesem Segment -- sorry, I forgot some important info: Calling the same out-of-proc COM object from a .NET Windows applications (WinForms) works well. -- Martin Knopp fecher GmbH email: Martin.Knopp@fecher.at web: http://www.fecher.at -- Alle Dienstleistungen von fecher im ?berlick! http://www.fecher.at/services/ -- -- Gupta Roadmap f?r SQLBase und Team Developer mit Themen wie Unicode, Linux und .NET - informieren Sie sich hier: http://www.fecher.at/GuptaRoadmapJuly2003 -- -- Windows style web application powered by Team Developer, Building Blocks XP and ASP.NET here: http://www2.fecher.de/islandweb/ -- -- fecher ist Premium Partner der Firma Gupta und bietet Ihnen alle Produkte und Dienstleistungen in diesem Segment -- > Anybody here can shed some light on this issue? > [quoted text clipped - 30 lines] > -- fecher ist Premium Partner der Firma Gupta und bietet Ihnen alle > Produkte und Dienstleistungen in diesem Segment -- Martin: I don't know if this is going to help, but I've been working with similar issues regarding interop and ASP.NET. In my case, I'm using an in-process COM object, so the analogy may break down at some point. I think the biggest thing to understand is how the COM object is run. What I've discovered is that the runtime callable wrapper (RCW) runs in a separate process from the CLR (it probably uses dllhost.exe, or something). This other process starts in the same security context as the owner of the calling process. In the case of a .NET Windows app, this will be whatever account you're logged in as. Your account probably has the necessary permissions. In ASP.NET, by default the ASPNET user owns the process (aspnet_wp.exe), and is the owner of the non-managed process as well. Any security settings you need to make will have to take this into account. Hope this helps. Dave P. > sorry, I forgot some important info: > [quoted text clipped - 57 lines] > > -- fecher ist Premium Partner der Firma Gupta und bietet Ihnen alle > > Produkte und Dienstleistungen in diesem Segment -- Thanks for the info but it doesn't help me because I am completely aware of this issues and up to my knowledge I did set all permissions correctly but it still doesn't work. Anyway thanks for your answer and I hope someone else can shed some more light on this topic. -- Martin Knopp fecher GmbH email: Martin.Knopp@fecher.at web: http://www.fecher.at -- Alle Dienstleistungen von fecher im ?berlick! http://www.fecher.at/services/ -- -- Gupta Roadmap f?r SQLBase und Team Developer mit Themen wie Unicode, Linux und .NET - informieren Sie sich hier: http://www.fecher.at/GuptaRoadmapJuly2003 -- -- Windows style web application powered by Team Developer, Building Blocks XP and ASP.NET here: http://www2.fecher.de/islandweb/ -- -- fecher ist Premium Partner der Firma Gupta und bietet Ihnen alle Produkte und Dienstleistungen in diesem Segment -- > Martin: > [quoted text clipped - 82 lines] > > > -- fecher ist Premium Partner der Firma Gupta und bietet Ihnen alle > > > Produkte und Dienstleistungen in diesem Segment -- Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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