I am working with an existing VB application that allows plugins to be imported as DLLs on Windows 11. I am told that the language used to create the DLL plugin does not matter.

I am a fan of GoLang and so I tried to create a very simple DLL to see if I could import it as a plugin.

The GoLang DLL looks like this:

package main

import "C"
import "fmt"

//export Hello
func Hello() {
    fmt.Println("Hello from DLL!")
}

func main() {}

The compilation command I use is this:

go -o mydll.dll -buildmode=c-shared

However, when I try to load the plugin into the VB app, I get this error:

.NET DLL Exception: Could not load file or assembly 'file:///C:testingmydll.dll' or one of its dependencies. The module was expected to contain an assembly manifest. UM DLL Exception: ImageRvaToVa (NamesPointer) failed

I have not found any solutions to this so far on Google. How can I use my GoLang DLL with the VB app?

I was expecting to load my GoLang DLL into the VB app as a plugin.

UPDATE:

Interestingly using mt.exe seems to do nothing. It does not change the size or modification time of the dll:

> .mt.exe -manifest "App.config" -outputresource:"mydll.dll"
> .mt.exe -inputresource:"mydll.dll" -out:"my.extracted.manifest"