I have a .Net C# application that manipulates Word documents.
I am using Microsoft.Office.Interop.Word.dll, part of Office 2010, product version 14.0.xxx. Invoking:
using Microsoft.Office.Interop.Word;
...
Application app = new Application();
causes the following error:
Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)).
I also noticed that when this error is generated, an instance of WINWORD.EXE is created and hangs, but the file is associated to Office 365, product version 16.0.xxx.
I am assuming that the (at least one) source of the error is the incompatibility between the .dll I'm using and the version of Word installed on my development machine.
QUESTION
Is it possible to perform office automation without having Microsoft Office installed on the server?
You don't need to install MS on your Server to use Office Automation!.
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
Is it possible to perform office automation without having Microsoft Office installed on the server?
No, it is not possible. Instead, you may consider using the Open XML SDK if you deal with open XML documents only. Otherwise, you may consider using any third-party components designed for the server-side execution, for example, Aspose.
The Considerations for server-side Automation of Office article states the following:
All current versions of Microsoft Office were designed, tested, and configured to run as end-user products on a client workstation. They assume an interactive desktop and user profile. They do not provide the level of reentrancy or security that is necessary to meet the needs of server-side components that are designed to run unattended.
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
If you are building a solution that runs in a server-side context, you should try to use components that have been made safe for unattended execution. Or, you should try to find alternatives that allow at least part of the code to run client-side. If you use an Office application from a server-side solution, the application will lack many of the necessary capabilities to run successfully. Additionally, you will be taking risks with the stability of your overall solution.
Related
I am trying to find out why the object of Microsoft PowerPoint application doesn't want to open pptx file. This is what I have (C#):
using PowerPoint = Microsoft.Office.Interop.PowerPoint;
using MSBool = Microsoft.Office.Core.MsoTriState;
private void button2_Click(object sender, EventArgs e)
{
PowerPoint.Application oPowerPointApp = new PowerPoint.Application();
oPowerPointApp.Activate();
oPowerPointApp.Visible = MSBool.msoTrue;
oPowerPointApp.Presentations.Open("c:\\mypp\\pptx001.pptx");
}
I am getting this exception when Open method is been called:
**System.Runtime.InteropServices.COMException: 'Error HRESULT E_FAIL has been returned from a call to a COM component.'
**
I have Microsoft 365 MSO (Version 2211 Build 16.0.15831.20220) 64-bit
Windows 10 64 bit
MSExcel application works just fine.
I am wondering if somebody had this kind of issues and have a solution. Any help would be greatly appreciated.
I tried to:
Tweak values of DCOM for Microsoft PowerPoint previewer (Security and Identity tabs)
Reinstall PowerPoint (MS Office)
Call to Open method with all kinds of different combinations of arguments
Install Nuget package Microsoft.office.Interop.PowerPoint
System.Runtime.InteropServices.COMException: 'Error HRESULT E_FAIL has been returned from a call to a COM component.'
This is a widely spread error when Office applications are automated on the server or form any service applications. Here is what MS states for such scenarious:
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
If you are building a solution that runs in a server-side context, you should try to use components that have been made safe for unattended execution. Or, you should try to find alternatives that allow at least part of the code to run client-side. If you use an Office application from a server-side solution, the application will lack many of the necessary capabilities to run successfully. Additionally, you will be taking risks with the stability of your overall solution.
Read more about that in the Considerations for server-side Automation of Office article.
If you deal with open XML documents only you may consider using the Open XML SDK instead. See Welcome to the Open XML SDK 2.5 for Office for more information.
I'm getting this error
Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
Any clue?
Office interop means that your software communicates with Office and operates it through the Interop API. Not installing Office on the server is the problem you are facing: it can't find the classes in the registry it needs to communicate with.
There is an underlying, even bigger problem though: you should never use Office in a hosted environment.
From Microsoft Support:
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
i have developed a website that allows users convert existing word file to PDF and download it, included references to Office.interop.word, and the site works fine on my development machine. When I uploaded it to my production server the functions not working in the server, In the server also installed MS-word.
even i tried below methods
In the command line put DCOMCNFG
Component Services -> Computers -> My Computer -> DCOM Config
Find "Microsoft Word 97 - 2003 Document" (If it is missing check if your Word is also 64 bit (if your Windows is))
Right click -> Properties
Go To Tab Security and Edit the "Customize" radio buttons so that IIS_IUSRS could have rights for launch and access
Go to Tab Identity and choose "The interactive user"
all this fails then i have tried to tab "General" and in "Authentication Level" drop down choose "None".
still the error continue...
Error : "Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error:
80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE))."
Can any one help me?
You have reached a dead end. Running Office programs inside an ASP.NET webserver is not supported:
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
I would suggest to find other ways to do what you want. There are a lot of libraries capable of reading and writing Office documents without using Office itself.
I have an Outlook Add in where I am using Microsoft.Office.Interop.Outlook.Storageitem to save my settings.
Most of my tests access the settings to set or get the configuration for contacting the server.
On my local machine all of the tests are running fine. But when I check in my project into TFS and run the tests there all of them fail with the Error:
System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)).
The error occurs when the test is calling the following codeline.
Folder inbox = (Folder) new Microsoft.Office.Interop.Outlook.Application().GetNamespace("MAPI").GetDefaultFolder(OlDefaultFolders.olFolderInbox);
I asume that the error appears because the test tries to access an Application of Outlook and does not have the permission.
Outlook is instaled on the Windows Server 2012 where TFS is running.
Also Outlook was started once with having no Mailaccount configured. (The test runs fine when i start it manually on a machine with a Outlook with no Mailaccount configured.)
The C:\Windows\SysWOW64\config\systemprofile\Desktop folder exists.
I already have set all permissions for the user NETWORK SERVICE in Controlpanel->Administrative tools->Component Services->computers-> myComputer->DCOM Config->Microsoft Outlook
I also found this question which has no answer to my problem.
Are there any other steps i could try to give my tests access to run the tests sucessfully?
Outlook is instaled on the Windows Server 2012 where TFS is running.
I already have set all permissions for the user NETWORK SERVICE in Controlpanel->Administrative tools->Component Services->computers-> myComputer->DCOM Config->Microsoft Outlook
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
If you are building a solution that runs in a server-side context, you should try to use components that have been made safe for unattended execution. Or, you should try to find alternatives that allow at least part of the code to run client-side. If you use an Office application from a server-side solution, the application will lack many of the necessary capabilities to run successfully. Additionally, you will be taking risks with the stability of your overall solution. Read more about that in the Considerations for server-side Automation of Office article.
No Office app (Outlook included) can be used in a service. I don't think actually creating an instance of Outlook.Application is a good idea in a unit test.
Try changing the TFS build server to run as a user with admin rights on the box. I would not suggest leaving this configuration.
I have an application that uses Microsoft.Office.Interop.Excel, when I deploy it on machines where there isn't any version of MS Office I get the following error
I tried installing VSTOR as indicated in this so answer COM object with CLSID {00024500-0000-0000-C000-000000000046} is either not valid or not registered
but this didn't solve the issue.
If you need to work only with open XML documents (*.xslx) you may consider using the Open XML SDK. See Welcome to the Open XML SDK 2.5 for Office for more information.
In case of binary file format you need to use any third-party components that don't required Office/Excel installed on the machine.
Pay special attention to the following fact:
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
If you are building a solution that runs in a server-side context, you should try to use components that have been made safe for unattended execution. Or, you should try to find alternatives that allow at least part of the code to run client-side. If you use an Office application from a server-side solution, the application will lack many of the necessary capabilities to run successfully. Additionally, you will be taking risks with the stability of your overall solution.
Read more about that in the Considerations for server-side Automation of Office article.
You can't use Microsoft Interop libraries if MS Office is not installed. You might want to look at alternative options to read Excel or Word files. There are many free and (paid) C# libraries you could use for this purpose, for example:
https://exceldatareader.codeplex.com/
https://github.com/ExcelDataReader/ExcelDataReader
You need download and install Microsoft Office {year}: Primary Interop Assemblies - it's free.