After the discovery of ClamWin leaving files, I tested all the other apps and found the same problem in OOPortable.
This time its:
C:\Dokumente und Einstellungen\[username]\Lokale Einstellungen\Temp\nsy32.tmp\newadvsplash.dll
Is there any pattern newadsplash.dll uses to name these temp folders?
Audacity also creates a folder:
C:\Dokumente und Einstellungen\[username]\Lokale Einstellungen\Temp\audacity_1_2_temp\
when Ii launch a fresh copy for the first time.
In addition to that, it creates the newadsplash.dll folder and an
AudacityPortable folder with 2 folders in it:
All folders are deleted by the launcher after closing the app.
Except for the \audacity_1_2_temp\.
If I delete the \audacity_1_2_temp\ folder myself, it isnt recreated when I start it the second time. I guess it must have something to do with the association- and language questions Audacity asks you at first launch.