Compatibility With DotNet Versions - SQLite.dll Doesn't Support Windows 7
Oct 15, 2011
I have been again blessed with legacy code made (presumably) with vs 2008. It's a Visual Basic project with a dependency to SQLite. The actual problem is that it is needed to install and run on Windows 7. Now, I have VB 2008 express in which I opened the project and tried to run it. It threw an exception which was most likely due to the fact that SQLite.dll doesn't support Windows 7 (and/or 64 bit environments). The exception was System. BadImageFormatException. (ddl version was 1.0.65.0)
I read somewhere in the internet that in order to run it in Windows 7 you need to have newer version of it. I downloaded it and managed to change the reference to newer one. Now in the SQLite site it says it requires .net version 3.5 or 4.0. I know that I can change the target framework to 3.5 or even 4.0 but do I need to change some of the old references in the project properties? All the references seem to be to 2.0 libraries. Like System 2.0.0.0 and path to X:windowsMicrosoft. NETFrameworkv2.0.50727System.dll. Does this actually mean that the application is using .net 2.0 although it target framework would be 3.5 or 4.0?
And most importantly do I need to convert my application manually or by using some tool to .net 3.5 or 4.0 in order to get it running with new SQLite dll which requires 3.5 or 4.0?
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Oct 25, 2011
Compatibility Between the 32-bit and 64-bit Versions software of .net2010
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Aug 16, 2010
I made a small program which i have sent to all users in my network. Unfortunately i forgot about older versions of framework.
Is there a quick and easy way to add older versions compatibility of framework to my project?
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Mar 23, 2011
I got following error when trying to login my web application.
method not found: System.String Microsoft.visual compatibility.vb6.support.format
what is that ?
Microsoft.visual basic.compatibility.dll is already present @ my machine
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May 11, 2012
I'm looking at the MSDN webpage for TextBoxBase.AppendText Method [URL] Under requirements I see "Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
[Code]...
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Nov 15, 2009
will an program built on windows 7 using vs 2008 or 2005 have the compatibility with windows xp or vista
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Nov 4, 2009
Am I still able to develop programs in Visual Basic 6 that will run easily under Windows 7? If no then must I convert to VB.NET? Are there other strategies?
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May 17, 2010
I have a small application I wrote in VB with visual studio express. This app uses a timer tick to wait for a certin time, the opens several comm ports, reads data, creates an output string, an sends the string via email. I tested this app for several days
on a windows 7 32 bit machine, with no problems. I compiled (published) the program, and am attempting to run it on a windows 7 64 bit machine. However, on the 64 bit machine, it freezes up and can only be stopped with Task Manager.
at the time the app hangs the only things going on are 1. a timer checking to see if it's time to read the comm ports. and 2. a background thread checkig to see if the internet is available to email the string.
I tried ;loading visual studio on the 64 bit machine, and compiling the app there, with the same result. However it seems to run (tested for 1 hour) in debug on the 64 bit machine.
Has anyone noticed anything like this? any ideas?
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Jan 16, 2009
I've started to use a Vista machine for development. In case it is significant: I'm using MSBee so that I can code in the Visual Studio 2005 IDE while still building against the 1.1 framework.On the Vista machine, when I tried to build a particular vb project, I got this error:
error BC30464: Namespace or type'Compatibility' in the project-level Imports 'Microsoft.VisualBasic.Compatibility' cannot be found.
The same project built fine on my old XP machine. I checked in this folder on my Vista machine:
C:windowsmicrosoft.netFrameworkv1.1.4322
...and sure enough, "Microsoft.VisualBasic.Compatibility.dll" was missing. So was "Microsoft.VisualBasic.Compatibility.Data.dll". Copying them from my XP machine to my Vista machine allowed me to build the project successfully.I'm just a bit puzzled as to why this happened. Why was "Microsoft.VisualBasic.Compatibility.dll" missing? I'm also not very comfortable with my chosen solution - copying the DLL manually. It works, but surely there must be a better way.
As far as the configuration:
Vista:
.Net Framework 1.1
.Net Framework 1.1 SP1
.Net Framework 1.1 SDK
[code]....
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Jan 17, 2010
Since vb doesnt support pointers but c# does. I am using a wrapper dll that requires a pointer to some singles to be passed within the method. I get an error that the method has some parameter types that are not supported. How can i pass a pointer to this method if vb .net doesnt support pointers.
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Sep 22, 2009
There is no IdentityEqual item in ExpressionType enumeration. How can I construct expreesion tree with VB.NET Is operator?
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May 9, 2011
I have a query to retrieve DateDiff in my SQL:
SELECT Convert(char,DATEDIFF(m, Temp.Opening_Date, '2011-05-01')) As MonthDifference From Temp
It was successfully retrieve the data from SQL Server. But when I bind it to my vb.net datatable, the value is null. It's seems like vb.net datatable doesn't support datatype from DateDiff... What can I do?
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Mar 2, 2009
Note: this is not a duplicate of Jeff's question. That question asked "Is an equivalent?" I know there isn't, and I want to know why! The reason I ask is that I've only just become clear on how important it is, and the conclusion seems very strange to me. The Exception Handling block of Microsoft's Enterprise Library advises us to use this pattern:
[Code]...
The policy is defined in an XML file, so that means that if a customer has an issue, we can modify the policy to assist with tracking down (or perhaps papering over) the problem to give them a fast resolution until we deal with it properly - which may involve arguing with 3rd parties, about whose fault it all is. This is basically an acknowledgement of the simple fact that in real applications the number of exception types and their "recoverability" status is practically impossible to manage without a facility like this.
Meanwhile, the CLR team at MS says this is not an option, and it turns out those guys know what they're talking about! The problem is that right before the catch block runs, any finally blocks nested inside the try block will be executed. So those finally blocks may do any of the following: Harmlessly modify the program state (phew, lucky). Trash something important in the customer's data, because the program state is screwed up to an unknown degree. Disguise or destroy important evidence that we need to diagnose an issue - especially if we're talking about calls into native code. Throw another exception, adding to the general confusion and misery.
Note that the using statement and C++/CLI destructors are built on try/finally, so they're affected too. So clearly the catch/throw pattern for filtering exceptions is no good. What is actually needed is a way to filter exceptions, via a policy, without actually catching them and so triggering the execution of finally blocks, unless we find a policy that tells us the exception is safe to recover from. The CLR team blogged about this recently:
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Feb 9, 2012
Are shared properties accessible from a COM exposed .NET assembly?
Dim appExcel As Object
Dim objAppSingleton As Object
Set objAppSingleton = CreateObject("Pitchbook.CommonUtils.Application.PitchbookAppSingleton")[code].....
The line appExcel = objAppSingleton.CurrentPitchbookExcelApp gives the error:Run-time error '438': Object doesn't support this property or method
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Jul 3, 2009
Why doesn't vb.net in Visual Studio 2010 have any Refactor support
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Feb 9, 2010
I am writing a VB.NET app that has a piece which needs to send a small command to comm port 2 and get the return result. The problem is .NET doesnt have any support for serial communication seems like.
I just need to send the command "headtype" and get the result.
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Feb 23, 2010
I have a VB.NET executable program that I've been running nightly as a Windows Scheduled Task on a Windows Server 2003 machine. I have the source code, and it was compiled using VS 2005. Now I want to run it on a Windows Server 2008 R2 machine. If I try to "open" it from Windows Explorer, I get "The version of this file is not compatible with the version of Windows you are running." It is in Program Files(x86), so doesn't the OS know to run it as a 32-bit application? Do I have to load this in VS2008 and recompile it there as a 64-bit app? But all my old VB6 and VBScript scheduled tasks are running fine, why is the OS only complaining about this program?
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Jan 31, 2012
Depending on what i know, SQLite is supported in WP7.1, but i cant even import System.Data.SQLite to the project should i download it as a dll specially for windows phone or am i missing something?!
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Jan 11, 2012
What does Windows do to an app when it is run in Compatibility Mode?Is there a way I can detect the compatibility mode settings in .NET?
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Jul 9, 2010
First forms project. My textbook [wrox VB 2880 Programmer's Reference, Rod Stephens] gives snippet that starts with [which intnellisense completes, except for variable names, including trailing 'paint' which seems to be the problem]
Public Class Form1
Private Sub form1_paint(ByVal sender As Object, ByVal e As System.Windows.Forms.TableLayoutCellPaintEventArgs) Handles MyBase.Paint
End Sub
End Class
which generates error :
Error 1 Method 'Private Sub form1_paint(sender As Object, e As System.Windows.Forms.TableLayoutCellPaintEventArgs)' cannot handle event
'Public Event Paint(sender As Object,
e As System.Windows.Forms.PaintEventArgs)' because they do not have a compatible signature
.
Changing 'Private' to 'Public' does not fix the error.
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Apr 21, 2010
I have VS2010 and have targeted Framework 2.0 to work with SQL Server 2000 which works great. The problem seems to be when I go to my release folder, right mouse click on my test.exe file and click on Compatibility, then select 'Run this program in compatibility mode for' and then select Windows 2000 from the combobox. i get this error upon execution of text.exe:
The type initializer for 'WindowsApplication1.Module1' threw an exception.System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.SqlConnection' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.SqlConnectionFactory' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.SqlPerformanceCounters' threw an exception. ---> System.PlatformNotSupportedException:
This operation is only supported on Windows 2000 SP3 or later operating systems.
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Mar 22, 2009
I want to be able to add a range and get updated for the entire bulk. I also want to be able to cancel the action before it's done (i.e. collection changing besides the 'changed').
[Code]...
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Aug 19, 2010
To the board: Lately I've been getting Runtime error 3447 ("The Jet VBA file (VBAJET.dll for 16-bit versions, or VBAJET32 for 32-bit versions) failed to initialize when called. Try reinstalling the application that returned the error") when attempting to open a certain program (not one that I designed, just downloaded and installed). I installed this program in January 2009, but this error began happening only this past July. someone else to information about the files vbajet32.dll and expsrv.dll. One site said that the problem was probably caused by the file expsrv.dll being absent, but I checked my System32 folder, and it's there. As far as I can tell, it has always been there (the computer was made in 2008, and as I said the program had always worked before). Vbajet32.dll is also there. I tried uninstalling and reinstalling the program, but error 3447 still occurs. I also tried uninstalling the program and installing an older version, but 3447 is still there.
I tried replacing expsrv.dll, thinking it might have been corrupt, but that didn't help, and I cannot register that dll anyway. I can't figure this thing out. Both of the files are there, and I didn't change any settings or anything anywhere between last January and this July. By the way, I am on Vista.
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Dec 20, 2005
The software I design is for Win XP and older versions such as Win 98, ME, 2000 etc. I currently use VB6 and Win XP for development and packaging, the problem I encounter is that if I use the deployment wizard in XP, the setup will only work on an XP machine and I need to copy all my source to an older machine and use the wizard again to create another setup file which will only work on the older operating systems. Is there a way to rectify this in VB6? If not, does the new VB account for this and be able to make a setup file for older operating systems as well as XP?
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Jun 12, 2011
I am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
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Mar 9, 2010
I have made a Windows Application using the VB.NET 2008. Which are the Windows versions at, my Application can work?For example Windows 98, 2000, NT, XP....
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Mar 25, 2012
I've read about revising the File Version (and Assembly Version) to ensure that an updated file does replace an older/previous file when a WI update installation is carried out, but I don't understand the four-part construction of the File Version ... and my re-versioned files sometimes refuse to transfer to the target computer.
For example, a .exe I have recently updated had it's File Version set to 1.0.0.0 (it is resident now in my Program Files (x86)/MyApplication folder) and File Date 23/03/2012, but even now with the File Version set to 2.0.0.10 and a File Date of 24/03/2012 when I use WI to install the new program over the original the 1.0.0.0 file remains in place and the new 2.0.0.10 file does not get installed instead.
[Code]...
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Feb 6, 2012
My problem is that the Winsock control doesn't appear to be releasing the connection when the Close Method is called.After the Close is issued the application performs a Do Until Loop to make sure the control is in the Closed State. Then we attempt to place the control into Listen state. At this point an error (Address in use) occurrs. The control is in the Closed State.
I placed a msgbox in the error routine with Retry and Cancel. The Retry performs a RESUME response to the error. Not withstanding how fast or slow of response to the msgbox, the RESUME ALLWAYS works and the Control then is successfully in the Listen State.
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Jan 12, 2012
I make loads of programs in visual basic, but it happens that my friends that want to try some, have Windows XP or Vista, when I have Windows 7 on the computer where i create them.I tried to launch the application compiled on 7 on their PCs but it just doesn't work. Is there any way to port programs from Windows 7 to other version of Windows? Or just to find a way to make them run?
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May 22, 2012
I'm using all the VB6 source code from a XP machine on a new Windows 7 machine. The code works fine and builds the .exe. The .exe runs fine on the Windows 7 computer, but will no longer work on an XP machine. In my facility most of my users are still on XP machines. An additional note, if I move the .frms back to the XP machine, they compile fine and the .EXE works fine on the XP machines.Now I using virtual machine It's working ok but its not the best Solution. is there any direct way to make the .exe of Windows 7 works will on XP machines.
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