msibanner temp files not deleted

i've a script that's using msibanner. after script ends, folder is left under user $TEMP containing msibanner.dll.
This happens each time i run the script so after multiple executions i got multiple tmp folder with that dll inside left.
Q. have i to set some special settings to avoid this ?
i saw something in this forum but nothing really helped. Issue seems occur only when using that plugin.
thanks in advance.

Are you using MSIBanner:😁estroy before the installer is closed? The msibanner.dll file must remain because it's probably still in use (and cannot be deleted).

-Stu

correct

Afrow, you were right: by mistake i put remark on the banner destroy line.
thanks.