could no load file or assembly "leadtools.dll"

Release leadtools winform to xp with sp3 system，have
error could no load file or assembly "leadtools.dll"，the
error image is 001.png，i have setup .net framwork 4.0
and Microsoft+Visual+C+++2010.exe.

my develop pc setup vs2010,so have ms vc++ 2010 redistributable and ms vc++ 2010 runtime,i find if i
set up vs2010 to release pc(xp with sp3 system),this
error is not occur

Hi Michael,

What is the bitness (32 or 64 bit) of your application and the LEADTOOLS DLLs that you are trying to use?

Are you able to write a simple console application that calls RasterSupport.IsLocked() without an error?

https://www.leadtools.com/help/leadtools/v19/dh/l/leadtools~leadtools.rastersupport~islocked.html

Can you give me a list of the LEADTOOLS DLLs that you're deploying?

I use 32 bit dlls,the dll list you kan see dll.png

the leadtools version is v18

Michael,

Can you check the 'Copy Local' property the referenced DLLs and ensure that it is set to True?

yes, all of ref dlls the copy local propoty set true

Michael,

In the Solution Explorer in Visual Studio, right click on the project (the level below 'Solution 'YourApp'') > Properties > Build. Change the output to C:\LEADTOOLS 18\Bin\Dotnet4\Win32

Then, back in the Solution Explorer, open the 'References' tree and select all of the referenced LEADTOOLS DLLs. Set the Copy Local property for these DLLs to False.

Run the program again and let me know if the problem persists. If it doesn't, then you are missing a reference.

If building to this LEADTOOLS bin folder fixes your issue, you can use Process Explorer to see which DLLs you need to reference to solve this problem when building to another folder. This is a free utility from Microsoft that you can download here:
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx

Process Explorer will show you at runtime what DLLs or handles a process has loaded at that given time. It's basically a two part application - on top is the process tree where you have to find your application. If the bottom pane is enabled, the utility will output the DLL/handle list there.

To see the DLLs, click on View -> Lower Pane View -> DLLs.
To see the path of the DLLs, click on View -> Select Columns, go to the DLL tab, and select the Path checkbox.


If building to the LEADTOOLS bin folder does not solve your problem, I will need a sample app that replicate the error in order to troubleshoot this further.