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>I am not sure why did it try to load the c:\dev version of the dll as I put this in the call:
>

>if loBridge.LoadAssembly("C:\_Siriusware\Main\Siriusware.Library\Siriusware.Library\bin\Debug\Siriusware.Library.dll")

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>e.g. I specified the exact path to the dll (although I also had the dll in the application directory from where I was testing it).
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>I am going to re-start VFP to be sure.
>
>UPDATE. Could not make it to work. VS does not stop on the breakpoints.

A few things you can try - don't attach VS to VFP until after you've loaded the assembly. Also do a full rebuild on the debug version to make sure the debug symbols are in sync - from the messages it's not loading the PDB and without those your breakpoints won't be hit.