SF5 forcing reboot

[mf]

Is there any way keeping SF5 from putting an entry into wininit.ini on 9x/Me which instructs Windows to delete the temporary irsetup.exe on reboot? This is a very annoying behaviour - because other installers check the actual state/existence of this INI and refuse to work until the system is rebooted (and thus wininit.ini removed and no actions are pending). So if a user starts an SF-Install and aborts it for any reason, he won't be able to install or upgrade his IE without rebooting - for example.

Any ideas? Or am I missing something?