DLL collision

Grasshopper Developer
1

I have one big problem:
For example:
I am developing A.gha with hello.DLL in “A folder” ,and meanwhile, existing “B folder” have B.gha+hello.DLL,( the 2 version hello.DLL are all 3rd part dll from the same programmer).
but this two hello.DLL are in different version we cannot move them under Library folder.
folder tree Like this:

Library folder:

                    |---- A folder:
                                       |---- A.gha + hello.DLL

                    |---- B folder:
                                       |---- B.gha + hello.DLL

but in real using ,when the grasshopper has finished loading, only one of two “hello.DLL” has been load.it is a big problem.i tried to change the name of one “hello.DLL” into another name, but it doesnot work.
Hope advise! Thank you!

1 Like
2

If they are managed DLLs, you will need to strong-name DLLs to enable side-by-side loading. It is a bit difficult to do if you don’t control the DLLs.
If they are native DLLs, you can rename either of them, and redirect PInvokes to the correct DLL.

4

It is slightly beyond normal coding things but it can be done. You need to sign a third-party library with a new “key” (acting as an identifier). Then your libraries reference the new strong-named DLLs and .NET CLR will load different versions at the same time.

If the higher version of that library doesn’t have a breaking change which prevents the one, dependent on lower verson, GH plugin to malfunction, I would delete the lower version.

Other solutions include isolated AppDomain (won’t be supported by Rhino 8), or isolated process.

3 Likes
5

thank you Keyu, I will try it!