It seems, that i´ve discovered a bug.
When you extract a self-extracting archive and one of the zip-entrynames has not valid chars (respective Directory-File System like \ / : * ? " < > | ) in his name, the extracting will stopping without an errormessage. Only a explorer-window
is popping up.
You can test it self. Create a self-extracting archive and add a directory with the
AddDirectory method and give the directory a new name with help of the second paramter. Use not valid chars like myD?re*ctory. After than try to extracting the archiv.