Drag&Drop dll into solidworks: how to uninstall it?

Hi all,

I'm newbie in building dll for making a solidworks add-in, and I have following problem:

I'm using vb6, starting from a template and help found on the web (I don't remember where...)... I'm able to build my custom toolbar with my specific buttons and so on...

I build my dll and I load into solidworks through drag&drop... then I change the code and I re-build the dll... now I want to update it into solidworks... so I drag&drop it again into solidworks... the result is that the dll is loaded twice on tools->add-in... how can I update the dll without adding a new add-in with the same name??

how can I unload and delete previous loaded add-in??

Thanks in advance!

SolidworksApi macros