How to complie

[sechanbask]

Sorry I'm noobs, I d'like to try your program, I hav download visual, install it, open the folder but I can't "export/compile" it to dll

I have this message in french :

"Impossible de démarrer une autre instance du programme d'installation pendant l'exécution de cette instance."

google translate :

Cannot start another instance of the installer while this instance is running.

Can have some help ?