.Net 4 dll Error

[spiderpig]

Anyone successfull calling a .net 4 dll with installshield 2011. I keep getting error -2147219705 (null). Anyone know what that error means. Using a Basic MSI project. Tried with the Custom action wizard and with DotNetCoCreateObject.

[joshstechnij]

Does this happen with all .NET assemblies you have tried to call or only one? Can you reproduce this behavior with a sample assembly?

[spiderpig]

Not yet I am going to try one of the sample dlls today. I will let you know the out come.

[spiderpig]

I get the same error using the SampleClassLibrary.dll. code below, just trying to load it right now, can't seem to get past loading



szDotNetDll = WindowsFolder ^ "temp\\SampleClassLibrary.dll";
szClass ="SampleClassLibrary.ChooseItem";
MessageBox("SaveConnString", INFORMATION);
MessageBox(szDotNetDll, INFORMATION);

UseDLL(szDotNetDll);

try
set SaveString = DotNetCoCreateObject(szDotNetDll, szClass, "");
catch
SprintfBox (INFORMATION, "Error","Error occured: %i\n\n%s\n\n%s", Err.Number, Err.Description, Err.LastDllError);
abort;
endcatch;

[spiderpig]

Fixed issue, had the developer change the classes and methods to non static.

Also the sample dll can not be used with the dotnetcocreateobject function.

[reshmi_patro]

You can set assembly: ComVisible(false) to assembly: ComVisible(true). The exception will not come.