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MS Office Forum / Outlook / Programming Forms / November 2004Add-In program does not work in Outlook 2000 SR-1
My Add-In program developed in .NET 2003 works well in Outlook 2003. But it does not work in Outlook 2000 SR-1. When I launched Outlook 2000 SR-1, I got an error -- "Object reference not set to an instance of an object" My Add-In program uses a reference of Outlook XP PIA ( microsoft.office.interop.outlook.dll) and some references of Framework V1.1.4322. I'm wondering what is wrong, how to solve this problem. Thanks a lot Mike You need different PIA's for different versions of Outlook and usually different compilations unless you do some complex reflection. See http://www.microeye.com/resources/res_outlookvsnet.htm for some information about that.  SignatureKen Slovak [MVP - Outlook] http://www.slovaktech.com Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003 Reminder Manager, Extended Reminders, Attachment Options http://www.slovaktech.com/products.htm > My Add-In program developed in .NET 2003 works well in Outlook 2003. > But it does not work in Outlook 2000 SR-1. When I launched Outlook 2000 SR-1, [quoted text clipped - 7 lines] > Thanks a lot > Mike Thank you, ken for your replying. I checked the link you gave. I found that Microsoft does not offer a PIA for Office 2000. So my problem is to how to build a PIA for Office 2000. I appreciate your help very much. Mike > You need different PIA's for different versions of Outlook and usually > different compilations unless you do some complex reflection. See [quoted text clipped - 13 lines] > > Thanks a lot > > Mike The bottom of that page I linked you to has information about that. SignatureKen Slovak [MVP - Outlook] http://www.slovaktech.com Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003 Reminder Manager, Extended Reminders, Attachment Options http://www.slovaktech.com/products.htm > Thank you, ken for your replying. > I checked the link you gave. I found that Microsoft does not offer a PIA [quoted text clipped - 3 lines] > > Mike Thank you, Ken. I tried to rebuild the Outlook Interop Assembly based on the article. However, when I searched "_SinkHelper" in Interop.Outlook.il, I found that _SinkHelper classes were already Public. I could not do any change. The version of Interop.Outlook.dll I used is 9.0.0.0. I'm wondering if there is something wrong. Thanks Mike > The bottom of that page I linked you to has information about that. > [quoted text clipped - 5 lines] > > > > Mike I'd start a new thread about this so someone else can answer. I don't find managed code addins for Outlook a compelling story so I'm not really familiar with the ins and outs of modifying PIA's. You might also try googling for this, I'm sure there's information out there somewhere. SignatureKen Slovak [MVP - Outlook] http://www.slovaktech.com Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003 Reminder Manager, Extended Reminders, Attachment Options http://www.slovaktech.com/products.htm > Thank you, Ken. > I tried to rebuild the Outlook Interop Assembly based on the article. [quoted text clipped - 5 lines] > Thanks > Mike |
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