If Compile A VB6 App On Win7 - ADODB.Connection Errors With "Class Does Not Support Automation Or Does Not Support Expected Interface"
Apr 28, 2011
I compiled some VB6 code on my Win7 x64 machine and the result .exe will not run correctly on any other machine. VB6 code is just a new template .exe file with one button, a reference to "Microsoft ActiveX Data Objects 2.6 Library" and the following code in the button press event: Dim db Set db = New ADODB.Connection It runs correctly on my machine, but no others (even other Win7 x64 machines) (Update: I found TWO other users where it runs and one of them is Jeff Atwood!, but most machines have the same problem)
[Code]...
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Aug 11, 2011
I created a simple VB 6 executable that runs fine on my computer (Windows 7), but when I deploy it to another Windows 7 PC or a Windows 2003 server, I get the error:
"Runtime Error 430: Class does not support Automation or does not support expected interface".
The code
Private Sub cmdStart_Click()
Dim rstLogin As ADODB.Recordset
MsgBox ("Before first recordset")
Set rstLogin = New ADODB.Recordset
MsgBox ("After first recordset")
End Sub
The line that generates the error is " Set rstLogin = New ADODB.Recordset". I had a coworker compile it from his Windows 7 pc and run it on other machiens and it works fine. So I believe it's an issue with my pc config.
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Mar 5, 2009
I'm in the middle of porting a VB6 product to VB .NET and .NET Framework 3.5, using Visual Studio 2008. Backward compatibility with customer VB6 legacy code is a requirement.Our VB6 product uses the COM ADODB.Recordset objects extensively both internally and in our API. They port directly to VB.NET if I add an adodb interop reference to my VS 2008 project. My question is how long will Microsoft continue to support ADODB.Recordsets in their languages and operating systems? 2018?I'm trying to make a design decision. Since backward compatibility with VB6 is a requirement, I would prefer to leave them in the .NET code. However, if support will be dropped soon in the near future, then I will use ADO.NET datasets instead, and convert between ADODB.Recordsets and datasets until support is dropped.
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Jun 3, 2010
I've downloaded latest source from mono project, compiled it and everything works (c# projects, mod_mono, xsp) except vb.net. Vbnc, mono's vb.net compiler does not exist after compiling mono from source.This is on CentOS 5, on Ubuntu 10.04 I installed mono packages via apt-get and vb.net just works.
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Aug 3, 2011
i have made many updaters and download managers however i have never worked out how to make it so that the if th connection is lost that it will jsut wait for a new connection and continue with the download. anyone know how to do this?
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Jun 8, 2010
How do i amend my Notepad assignment to support MDI interface multiple concurrent files
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Jul 8, 2009
I am having a problem using ADO 2.8 and SQL Server 2000.Im using the SQLOLEDB Provider and when Im trying to set the Index by using the code below i receive the ffg error...Error 3251 : Current Provider does not support the necessary interface for Index functionality..I have to use SQL Server as our Access databases are quite large...Does the index and seek function even work with ADO and SQL Server 2000?...I am migrating from DAO to ADO to use SQL Server and Im trying not to change the existing code so I need to use the Index and Seek functionality as it has been used everywhere...There are no links between any tables so I am accessing the table directly.
Dim Db as new ADODB.Connection
Dim rs as new ADODB.Recordset
Db.Provider = "SQLOLEDB.1"
[code]....
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Nov 8, 2009
I have this application that users can make exams that contain exercises of different ... whatever. Anyway when student takes the exam he chooses it from a list and then all exercises are loaded from database. I wanted to make loading process faster by loading only first exercise data and putting others in background thread.
Actually in other parts of this application something like that is done but not by me. Basicaly an api class is built around BackgroudWorker and i can use this class to put certain functions of objects to be executed in background. The idea sounds great but in real life there are some problems with it. For example for historical reasons this application uses global functions and reader and uses global connection to Access database which means if in background something is being fectched from data base and you try to fetch from database in main thread then a „reader is already open" error occurs. To avoid this error if im doing something in main thread and want to fetch some data i have to move my function from main thread into background worker function list. And basically this in my opinion stinks cuz you end up with many delegātes, invoked checking and thre result... I was just thinking that there maybe is another way to allow (maybe with events) not put everything in background in case something is happening in bakcground but rather allow bgworker to finsih current thing, then do my thing and then resume bgWorker and not create havoc in code.
Basically i have to classes - exam and exercise that each implement many interfaces (like IExercise, IExerciseResult, IExerciseYesNo, IExerciseMultipleChoise etc.)And then i have DataBase classes like ExerciseDB, ExerciseResult etc. That have functions that preparē the sql params and call sqlHelper functions.And for example when i load up exam i go throug all exercises and call LoadData function that in turn calls ExerciseDB function selectData and then i put the returned data in Exercise object. And this type of thing of course would producē error if i at the same time would try to register the answer in database for another exercise. Ofcourse i could always check and put this in background... but as i said i'd rather want to work with database from both threads.
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Jul 8, 2011
I created a simple VB 6 executable that runs fine on my computer (Windows 7), but when I deploy it to another Windows 7 PC or a Windows 2003 server, I get the error"Runtime Error 430: Class does not support Automation or does not support expected interface"
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Feb 3, 2011
In some DLL, I have an interface defined like this (shortened code):
Public Interface wsIInvoice
''' <summary>
''' Perform plugin specific actions for a given memberhip invoice that is processedin an incasso batch, and return success result.
[Code].....
The DLL implementing the interface has a reference to the one defining it. And the defining DLL is imported.
I'm doing exactly the same thing in another DLL, and there VS does not complain.
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Aug 19, 2010
I'm using VB.net 2010 express, where can I find the compiler option for 64bit? or, it will compile for 32bit only? or, it should work for both 32 and 64 bit in most case?I'm using a 64bit component in the program, vb express reports error when I compile it, but if I use the 32bit compnent, then it is ok.does it mean express 2010 automatically compile to 32bit? or somewhere I should set the win7 64bit (which is what i'm using).just start using win7 64bit & vb express 2010, got confused
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Jan 13, 2012
For some reason this is giving me errors..
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Dim ConnectionString As New ADODB.Connection
Dim rs2 As New ADODB.Recordset
[CODE]...
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Jul 29, 2011
Does anyone know if/when .NET will support SFTP?
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Jun 24, 2010
1. Is email support still available?
2. Is there any way to tell when it will be available if it still is a service that Microsoft provides?
3. Is there any way of telling what I might be doing wrong, if anything?
The message I receive at all hours anytime I try this (about 10x so far) is:"We are sorry, we are unable to process your order at this time."without any explanation as to why or when I could be able to process the order.
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Mar 17, 2009
Ok ive looked all over the web but all I can find is examples in other programming languages (cant convert). Can anyone shed some light on how to make a dll that works with rundll32 (just the basics) or tell me were i can find info.
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Oct 6, 2011
I am attempting to make a browser. I have it set up to where it can support one proxy. My question, is, How would I make it to where the program would read from a text file, and use those proxies? 1 proxy per line?
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Sep 7, 2010
I tried upgrading vb6 to vb.net using the convert tool in visual studio 2010. But I couldnt find the option Visual Basic 2010 Upgrade Wizard.
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Dec 9, 2009
I am developing an application in VS 2005 (VB.NET) that should run on both 32 and 64 bit OS.The Framework is distributed with the application. Microsoft has two different FW redistributables dotnetfx.exe for 32bit OS and NetFx64.exe for 64bit OS.Is there any installation file that can detect the OS type and install correct redistributable?
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Jan 19, 2010
Dim x As Integer = 1.8 1
Error:
Option Strict On disallows implicit
conversions from 'Double' to 'Long'
What Long??
EDIT:
Apparently Visual Basic attempts to convert any floating-point numeric expression to Long. OK, this part is clear.
Now, I can use the
CType((Math.Round(myResultingSingle)), Integer)
but what for MSDN tells that operator supports all the types if in reality it supports only Long as expression1 ?!...
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Jun 21, 2010
I would like to add some scripting support to my .NET-application (I usually code in VB.NET). Since VisualStudio 2008 won't let me use VSA to get scripting support, and the Windows ScriptControl crashes in 64-bit mode, I have been looking for an alternative solution to my problem.I would really like to be able to code the scripts in VBScript or VB.NET, because of the simple syntax.Would it be possible to implement some kind of sandbox inside my application to make it run a VB.NET application inside itself? Or is there any simpler way of getting scripting support?
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Apr 3, 2007
I'm writing a media management tool and want to add support for MTP based devices.I've been reading through the SDK docs and with the help of some C# examples have managed to make a start on getting some VB code working.
I've come across a few anomolies that I hope someone can help me with!In the examples IPortableDeviceManager.GetDevice appears in C# to receive a string array. But in VB.NET it appears to only receive a string. I have a similar issue with IPortableDeviceManager.GetDeviceFriendlyName which according to the C# samples appears to receive a char array, whereas in VB.NET it is accepting a UShort.
[Code]...
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Dec 15, 2009
I'm working on a new project, it's kind of a patcher but I'd like to add torrent support for it as well as a regular HTTP download within it.
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Jan 17, 2009
While for the most part you can generate the same MSIL, there are definitely differences in tooling. PEX, for example, works much easier with C#.
What Microsoft or 3rd party tools don't work equally well for both languages?
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Nov 24, 2010
How do I direct help from MS support on line?
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Apr 3, 2009
Does VB.NET supports virtual events?
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Jan 14, 2009
One last hangup with an application and I've tried like heck to research this but no luck.When I do a button click on my open file, it brings up a sub with all the open file code same for my save file and everything works perfectly.If, the open file dialog is on the screen and you should click either cancel or close I get the following argument exception unhandled, (and I've pasted all the details).It throws the exception at the very first line where textbox1 gets it's backcolor(txc(0)) is the variable in my.settings
If I open ANY file I have saved by clicking OK, all goes perfectly, it loads the file and I don't get the exception.I only get it when I click off the open file dialog with cancel or X.
[Code]...
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Aug 5, 2009
I have a number of functions that, for one reason or another, return data type object.If I try and use the + operand (or indeed any arithmetic operator) on types object the compiler throws a wobbly.
How do I tell if a given object supports the "+" operator and, if it does, invoke that "+" operator?
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Aug 12, 2010
Does VB Supports OOPS Concepts?
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Aug 24, 2009
I'm developing a new SOA system right now, and would like to use WSDL2.0, but I heard some clients are still connect using VisualBasic and WSDL1.1 (mostly from excel sheets and stuff). So I was wondering if VisualBasic also supports WSDL2.0, or if it's all 1.1
I know WSDL2.0 will work with C#,Java,and most other typical application programming languages, and these languages will be used by most of our clients, but I don't want to alienate our VB users, so that's why I'm asking.
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Dec 2, 2011
Well I am using Visual Basic 2010 Express Edition & I have already coded support for buttons & sticks for the most part basically(I can't detect the two different triggers as two different values so I can't know when one is partially down when ones pushing in the other stick or letting that one go) I can't detect the guide button....also I can't make the controller vibrate...
Is there a way to solve this? I don't want to download C# express edition or visual studio trial & xna just to try & get code for C# which may include code I don't know what I need to copy(+translate to vb) or classes/functions not available in the Visual Basic language.
Can anyone help me so I can make this from VB? I want them to be able to use the buttons to move around the user interface(not a game), the guide button to be used to bring up a menu to turn off the controller & such like that & vibration feedback so they are sure when they pushed a button & an action was carried out for example....
---My last post was moved off-topic telling me to post in the xna forum but I don't want to build this using xna game studio or C# language that you must have installed to use xna game studio....I need this code for VB.NET if it's even possible to do at all, reccomendations to use XNA/C++/C#,F#, etc...these will be ignored as I don't want to have to download & install XNA or the express editions for all the different coding languages just because one thing in my own isn't turning out easy for me to work with.
If i had the money for visual studio this would be no big deal but im a single developer basically(all the coding for the program) & don't have enough money for the tool that could allow me to easily make a project using any language I want without having to download & install all the express editions seperately & start them up seperately when I want to work with certain projects.
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