Interop Automation Error
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business automation error the system cannot find the file specified vb6 Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation automation error the system cannot find the file specified tlb Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just ms access automation error. the system cannot find the file specified like you, helping each other. Join them; it only takes a minute: Sign up Automation error with interop up vote 0 down vote favorite I have recently had to rebuild a C# interop created for calling from excel vba automation error the system cannot find the file specified VB6. I have registered it with regasm (using codebase switch) and added the tlb as a reference to the VB6 project but when I attempt to call it I get the following automation error: -2146232832 (0x80131600) If I register the existing interop dll in exactly the same way and add to my project, it works fine. The only differences I can think of are that the project has since been upgraded from VS8 to VS9
Regasm /codebase
(same .net version though), and I'm now compiling on a 64-bit machine (which I know there are issues around this). I have set the project to compile as x86 but I still get the automation error. Any ideas?? c# .net com-interop share|improve this question edited Sep 24 '12 at 18:40 Kate Gregory 16.1k74478 asked Aug 15 '12 at 16:29 RRM1000 334 You mean VS2008 and VS2010 I think? –EaterOfCode Aug 15 '12 at 16:33 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted Your C# code is throwing an exception and it isn't being caught. Specifically an ApplicationException. That's an exception that the framework code never throws, it must be located in your C# source code. You'll need to debug the code if you can't locate the problem. Do so with Project + Properties, Debug tab. Select "Start external program" and point it to c:\program files\microsoft visual studio\vb98\vb6.exe. Then Debug + Exceptions, tick the Thrown checkbox for CLR exceptions. You can now press F5 and the VB6 IDE start running. Load your VB6 project and reproduce the problem. The debugger stops at the line of C# code that throws the exception. share|improve this answer answered Aug 15 '12 at 19:08 Hans Passant 655k819631606 Many thanks. Very useful to know how to debug fro
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Automation Error In Vba
Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community automation error in vb6 Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Excel .NET regasm unregister COM - Automation error. The system cannot find the file specified up vote 13 down vote favorite 1 I have a .NET 2.0 COM object that's used by VBA in Excel. It works fine on my dev machine, but when trying to http://stackoverflow.com/questions/11973212/automation-error-with-interop use it on a clean VM workstation I get this error: Automation error. The system cannot find the file specified. The dll is registered with "regasm /tlb /codebase mycom.dll" and not put in the GAC. I don't have administration rights on the VM box Any ideas? .net excel com automation share|improve this question asked May 19 '09 at 9:18 ingt 91124 add a comment| 4 Answers 4 active oldest votes up vote 11 down vote You need to either invoke regasm with the full path http://stackoverflow.com/questions/881750/excel-net-com-automation-error-the-system-cannot-find-the-file-specified to the assembly as the codebase parameter value or put the assembly into some location which is always on the path for searching libraries. Otherwise it will not be found when the client tries to instantiate the COM object. share|improve this answer answered May 19 '09 at 12:09 sharptooth 109k50317709 I did try using regasm on the full path of the assembly which is located in c:\temp, but still the same error –ingt May 19 '09 at 14:07 1 Then I guess your best bet is to start ProcessMonitor - technet.microsoft.com/ru-ru/sysinternals/bb896645.aspx - and look what file exactly is not found. It could be some dependent assembly you're not at all aware of. Once you know for sure it will be much easier to resolve. –sharptooth May 20 '09 at 4:51 sharptooth, thank you very much for this answer. It saved my hide today! –Matthew Talbert Sep 23 '09 at 8:50 THank you this helped alot –David Jan 29 '14 at 14:59 add a comment| up vote 6 down vote On windows 7, 64 bit and a .NET 4.0 framework dll (32 bit) that I want to be usable as a COM object for a Microsoft Excel 2010 VBA application, here is what worked for me. Copy the dll to c:\windows\syswow64 In a cmd shell, run C:\Windows\Microsoft.NET\Framework\v4.0.
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OS: NT, 9x, 2000 Product: N/A This article attempts to provide a tutorial as well as help with the troubleshooting of your own interop issues. I will describe the issues with using libraries written in C# or VB.NET in your VB6 applications. The reason, this is an issue, is because there is a lot of new code available only in C# or VB.NET that access new functionality of the OS. Or it could simply be the case that there is already existing C# code that's not available as a COM library, that you want to use. What brought this on is that I needed to integrate the Windows Task Scheduler (Start/Run/Tasks) into one of my applications. I didn't want to spend time wrapping the Task Scheduler's WinAPI calls, so I looked for a pre-cooked solution on Google. I saw a bunch of code that didn't work very well and finally settled on a pretty well debugged library (in its second version) on the CodeProject web site. This library is written in C#. So, what most web sites tell you about Interop can essentially be boiled down to these steps: Create a strong key by running sn k mykey.snk from the command line. Add the path of this generated file to your AssemblyInfo.vb or .cs file in the following manner: VB.NET: