I have a COM dll written in vb6. When I try to create a new object of a class module from this dll I get a Run timer error 430: Class does not support automation or does not support expected interface. The interesting thing is that this happens only from outside the IDE, when I am debugging from within the IDE there is no error thrown and the new object of the class is created successfully. What can be the cause?
In general I occasionally get these kind of errors in COM dlls. What is the best way to debug COM issues? How can I know the path of the dll that is being used when a program is running?
asked Nov 11, 2008 at 8:58
If this project is entirely in VB6. The likely cause of this is that the EXE has a copy of the DLL binary in it’s directory. When you fire it uses that copy instead of the compiled copy. When you ADD methods or classes that EXE becomes incompatible with the old DLL. If you did a bug fix or just worked with the inside code then EXE will run but it used the old DLL.
Set your DLL to Binary Compatibility.
Make sure you have a Compatible directory.
Put the DLL of the Last version in there.
Point the Binary Compatibility to that DLL.
Make sure your EXE compiles to it’s project directory.
Run the EXE from it’s project directory. That way it will use the DLL that you compiled.
You need to write a utility so that you can compile every project separately.
Test your setup using Virtual PC or another computer.
All these steps will help to avoid DLL Hell. My own project has two dozen ActiveX projects in 6 layers. When I adopted the above my DLL Hell problems dropped to almost nothing.
answered Nov 11, 2008 at 13:13
RS ConleyRS Conley
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Read up on binary vs project compatibly.
If you have a shared dll you have to be careful and use binary compatibly. That way VB6 will keep that same COM signature/interface between builds. You have to have a copy of the released DLL for VB6 to compare to — I usually have a separate folder for released binaries. The restriction with binary compatibility is that you can’t delete public properties or methods and you can’t change their signatures. You can add new properties and methods.
Use project compatibility if you have to make breaking changes (like deleting old public methods) — however if you do that you will have to re-compile all other apps that use the shared DLL.
answered Nov 11, 2008 at 19:18
DJ.DJ.
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This is almost certainly a versioning problem, sometimes known as «DLL hell».
The background is that the .NET world is explicitly designed to let interfaces evolve while keeping the same name. But in the COM world, interfaces are considered to be immutable.
When you’re working within the IDE, Visual Studio is creating a new COM Interop wrapper for the COM dll every time you run your solution. But unless you release and replace your entire solution every time, including a brand-new COM Interop wrapper, you’re going to run into a versioning issue, where the .NET code is expecting one COM interface but seeing a different one.
EDIT: For some reason, I assumed that you’re trying to use the COM component from a .NET component. If the entire solution is actually VB6, then Mr Conley’s solution is the recommended approach. Here’s a good link that discusses the problem.
answered Nov 11, 2008 at 11:35
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How to fix the Runtime Code 430 Microsoft Access Error 430
This article features error number Code 430, commonly known as Microsoft Access Error 430 described as Class does not support Automation or does not support expected interface.
About Runtime Code 430
Runtime Code 430 happens when Microsoft Access fails or crashes whilst it’s running, hence its name. It doesn’t necessarily mean that the code was corrupt in some way, but just that it did not work during its run-time. This kind of error will appear as an annoying notification on your screen unless handled and corrected. Here are symptoms, causes and ways to troubleshoot the problem.
Definitions (Beta)
Here we list some definitions for the words contained in your error, in an attempt to help you understand your problem. This is a work in progress, so sometimes we might define the word incorrectly, so feel free to skip this section!
- Access — DO NOT USE this tag for Microsoft Access, use [ms-access] instead
- Automation — Automation is the process of having a computer do a repetitive task or a task that requires great precision or multiple steps, without requiring human intervention.
- Class — A template for creating new objects that describes the common states and behaviors
- Interface — An interface refers to the point of interaction between components
- Access — Microsoft Access, also known as Microsoft Office Access, is a database management system from Microsoft that commonly combines the relational Microsoft JetACE Database Engine with a graphical user interface and software-development tools
- Microsoft access — Microsoft Access, also known as Microsoft Office Access, is a database management system from Microsoft that commonly combines the relational Microsoft JetACE Database Engine with a graphical user interface and software-development tools
Symptoms of Code 430 — Microsoft Access Error 430
Runtime errors happen without warning. The error message can come up the screen anytime Microsoft Access is run. In fact, the error message or some other dialogue box can come up again and again if not addressed early on.
There may be instances of files deletion or new files appearing. Though this symptom is largely due to virus infection, it can be attributed as a symptom for runtime error, as virus infection is one of the causes for runtime error. User may also experience a sudden drop in internet connection speed, yet again, this is not always the case.
(For illustrative purposes only)
Causes of Microsoft Access Error 430 — Code 430
During software design, programmers code anticipating the occurrence of errors. However, there are no perfect designs, as errors can be expected even with the best program design. Glitches can happen during runtime if a certain error is not experienced and addressed during design and testing.
Runtime errors are generally caused by incompatible programs running at the same time. It may also occur because of memory problem, a bad graphics driver or virus infection. Whatever the case may be, the problem must be resolved immediately to avoid further problems. Here are ways to remedy the error.
Repair Methods
Runtime errors may be annoying and persistent, but it is not totally hopeless, repairs are available. Here are ways to do it.
If a repair method works for you, please click the upvote button to the left of the answer, this will let other users know which repair method is currently working the best.
Please note: Neither ErrorVault.com nor it’s writers claim responsibility for the results of the actions taken from employing any of the repair methods listed on this page — you complete these steps at your own risk.
Method 1 — Close Conflicting Programs
When you get a runtime error, keep in mind that it is happening due to programs that are conflicting with each other. The first thing you can do to resolve the problem is to stop these conflicting programs.
- Open Task Manager by clicking Ctrl-Alt-Del at the same time. This will let you see the list of programs currently running.
- Go to the Processes tab and stop the programs one by one by highlighting each program and clicking the End Process buttom.
- You will need to observe if the error message will reoccur each time you stop a process.
- Once you get to identify which program is causing the error, you may go ahead with the next troubleshooting step, reinstalling the application.
Method 2 — Update / Reinstall Conflicting Programs
Using Control Panel
- For Windows 7, click the Start Button, then click Control panel, then Uninstall a program
- For Windows 8, click the Start Button, then scroll down and click More Settings, then click Control panel > Uninstall a program.
- For Windows 10, just type Control Panel on the search box and click the result, then click Uninstall a program
- Once inside Programs and Features, click the problem program and click Update or Uninstall.
- If you chose to update, then you will just need to follow the prompt to complete the process, however if you chose to Uninstall, you will follow the prompt to uninstall and then re-download or use the application’s installation disk to reinstall the program.
Using Other Methods
- For Windows 7, you may find the list of all installed programs when you click Start and scroll your mouse over the list that appear on the tab. You may see on that list utility for uninstalling the program. You may go ahead and uninstall using utilities available in this tab.
- For Windows 10, you may click Start, then Settings, then choose Apps.
- Scroll down to see the list of Apps and features installed in your computer.
- Click the Program which is causing the runtime error, then you may choose to uninstall or click Advanced options to reset the application.
Method 3 — Update your Virus protection program or download and install the latest Windows Update
Virus infection causing runtime error on your computer must immediately be prevented, quarantined or deleted. Make sure you update your virus program and run a thorough scan of the computer or, run Windows update so you can get the latest virus definition and fix.
Method 4 — Re-install Runtime Libraries
You might be getting the error because of an update, like the MS Visual C++ package which might not be installed properly or completely. What you can do then is to uninstall the current package and install a fresh copy.
- Uninstall the package by going to Programs and Features, find and highlight the Microsoft Visual C++ Redistributable Package.
- Click Uninstall on top of the list, and when it is done, reboot your computer.
- Download the latest redistributable package from Microsoft then install it.
Method 5 — Run Disk Cleanup
You might also be experiencing runtime error because of a very low free space on your computer.
- You should consider backing up your files and freeing up space on your hard drive
- You can also clear your cache and reboot your computer
- You can also run Disk Cleanup, open your explorer window and right click your main directory (this is usually C: )
- Click Properties and then click Disk Cleanup
Method 6 — Reinstall Your Graphics Driver
If the error is related to a bad graphics driver, then you may do the following:
- Open your Device Manager, locate the graphics driver
- Right click the video card driver then click uninstall, then restart your computer
Method 7 — IE related Runtime Error
If the error you are getting is related to the Internet Explorer, you may do the following:
- Reset your browser.
- For Windows 7, you may click Start, go to Control Panel, then click Internet Options on the left side. Then you can click Advanced tab then click the Reset button.
- For Windows 8 and 10, you may click search and type Internet Options, then go to Advanced tab and click Reset.
- Disable script debugging and error notifications.
- On the same Internet Options window, you may go to Advanced tab and look for Disable script debugging
- Put a check mark on the radio button
- At the same time, uncheck the «Display a Notification about every Script Error» item and then click Apply and OK, then reboot your computer.
If these quick fixes do not work, you can always backup files and run repair reinstall on your computer. However, you can do that later when the solutions listed here did not do the job.
Other languages:
Wie beheben Fehler 430 (Microsoft Access-Fehler 430) — Die Klasse unterstützt keine Automatisierung oder unterstützt keine erwartete Schnittstelle.
Come fissare Errore 430 (Errore di Microsoft Access 430) — La classe non supporta l’automazione o non supporta l’interfaccia prevista.
Hoe maak je Fout 430 (Microsoft Access-fout 430) — Klasse ondersteunt geen automatisering of ondersteunt de verwachte interface niet.
Comment réparer Erreur 430 (Erreur Microsoft Access 430) — La classe ne prend pas en charge l’automatisation ou ne prend pas en charge l’interface attendue.
어떻게 고치는 지 오류 430 (마이크로소프트 액세스 오류 430) — 클래스가 자동화를 지원하지 않거나 예상 인터페이스를 지원하지 않습니다.
Como corrigir o Erro 430 (Erro 430 do Microsoft Access) — A classe não oferece suporte a automação ou não oferece suporte à interface esperada.
Hur man åtgärdar Fel 430 (Microsoft Access Error 430) — Klassen stöder inte automatisering eller stöder inte förväntat gränssnitt.
Как исправить Ошибка 430 (Ошибка Microsoft Access 430) — Класс не поддерживает автоматизацию или не поддерживает ожидаемый интерфейс.
Jak naprawić Błąd 430 (Błąd Microsoft Access 430) — Klasa nie obsługuje automatyzacji lub nie obsługuje oczekiwanego interfejsu.
Cómo arreglar Error 430 (Error 430 de Microsoft Access) — La clase no es compatible con la automatización o no es compatible con la interfaz esperada.
About The Author: Phil Hart has been a Microsoft Community Contributor since 2010. With a current point score over 100,000, they’ve contributed more than 3000 answers in the Microsoft Support forums and have created almost 200 new help articles in the Technet Wiki.
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Номер ошибки: | Ошибка 430 | |
Название ошибки: | Microsoft Access Error 430 | |
Описание ошибки: | Class does not support Automation or does not support expected interface. | |
Разработчик: | Microsoft Corporation | |
Программное обеспечение: | Microsoft Access | |
Относится к: | Windows XP, Vista, 7, 8, 10, 11 |
Оценка «Microsoft Access Error 430»
«Microsoft Access Error 430» также считается ошибкой во время выполнения (ошибкой). Чтобы убедиться, что функциональность и операции работают в пригодном для использования состоянии, разработчики программного обеспечения, такие как Microsoft Corporation, выполняют отладку перед выпусками программного обеспечения. Поскольку разработчики программного обеспечения пытаются предотвратить это, некоторые незначительные ошибки, такие как ошибка 430, возможно, не были найдены на этом этапе.
Пользователи Microsoft Access могут столкнуться с сообщением об ошибке после выполнения программы, например «Class does not support Automation or does not support expected interface.». В случае обнаруженной ошибки 430 клиенты могут сообщить о наличии проблемы Microsoft Corporation по электронной почте или сообщать об ошибках. Затем программисты могут исправить эти ошибки в коде и включить исправление, которое можно загрузить с их веб-сайта. В результате разработчик может использовать пакеты обновлений для Microsoft Access, доступные с их веб-сайта (или автоматическую загрузку), чтобы устранить эти ошибки 430 проблемы и другие ошибки.
Когда происходит ошибка 430?
Сбой во время выполнения Microsoft Access, как правило, когда вы столкнетесь с «Microsoft Access Error 430» в качестве ошибки во время выполнения. Вот три наиболее распространенные причины, по которым происходят ошибки во время выполнения ошибки 430:
Ошибка 430 Crash — это типичная ошибка «Microsoft Access Error 430», которая приводит к полному завершению работы программы. Это возникает, когда Microsoft Access не реагирует на ввод должным образом или не знает, какой вывод требуется взамен.
Утечка памяти «Microsoft Access Error 430» — ошибка 430 утечка памяти приводит к тому, что Microsoft Access постоянно использует все больше и больше памяти, увяская систему. Есть некоторые потенциальные проблемы, которые могут быть причиной получения проблем во время выполнения, с неправильным кодированием, приводящим к бесконечным циклам.
Ошибка 430 Logic Error — Логическая ошибка вызывает неправильный вывод, даже если пользователь дал действительные входные данные. Он материализуется, когда исходный код Microsoft Corporation ошибочен из-за неисправного дизайна.
Microsoft Corporation проблемы с Microsoft Access Error 430 чаще всего связаны с повреждением или отсутствием файла Microsoft Access. Для устранения неполадок, связанных с файлом Microsoft Corporation, большинство профессионалов ПК заменят файл на соответствующую версию. Помимо прочего, в качестве общей меры по профилактике и очистке мы рекомендуем использовать очиститель реестра для очистки любых недопустимых записей файлов, расширений файлов Microsoft Corporation или разделов реестра, что позволит предотвратить появление связанных с ними сообщений об ошибках.
Типичные ошибки Microsoft Access Error 430
Усложнения Microsoft Access с Microsoft Access Error 430 состоят из:
- «Ошибка программного обеспечения Microsoft Access Error 430. «
- «Недопустимый файл Microsoft Access Error 430. «
- «Microsoft Access Error 430 должен быть закрыт. «
- «Файл Microsoft Access Error 430 не найден.»
- «Microsoft Access Error 430 не найден.»
- «Ошибка запуска в приложении: Microsoft Access Error 430. «
- «Файл Microsoft Access Error 430 не запущен.»
- «Отказ Microsoft Access Error 430.»
- «Microsoft Access Error 430: путь приложения является ошибкой. «
Ошибки Microsoft Access Error 430 EXE возникают во время установки Microsoft Access, при запуске приложений, связанных с Microsoft Access Error 430 (Microsoft Access), во время запуска или завершения работы или во время установки ОС Windows. Запись ошибок Microsoft Access Error 430 внутри Microsoft Access имеет решающее значение для обнаружения неисправностей электронной Windows и ретрансляции обратно в Microsoft Corporation для параметров ремонта.
Источники проблем Microsoft Access Error 430
Заражение вредоносными программами, недопустимые записи реестра Microsoft Access или отсутствующие или поврежденные файлы Microsoft Access Error 430 могут создать эти ошибки Microsoft Access Error 430.
Особенно ошибки Microsoft Access Error 430 проистекают из:
- Недопустимая или поврежденная запись Microsoft Access Error 430.
- Вредоносные программы заразили Microsoft Access Error 430, создавая повреждение.
- Microsoft Access Error 430 злонамеренно или ошибочно удален другим программным обеспечением (кроме Microsoft Access).
- Другая программа, конфликтующая с Microsoft Access Error 430 или другой общей ссылкой Microsoft Access.
- Microsoft Access (Microsoft Access Error 430) поврежден во время загрузки или установки.
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