Thank you all,

indeed the old Outpost version is the problem, even it is “shut down” and no more processes “seem” to run (thanks Vlk).

The bad guy is the “FILNTNT.SYS”. Apparently the kernel-driver.

When I rename this guy, I get an error message at startup, but when I “shutdown Ouptost” afterwards, the “download-problem” is not existing anymore. Nice to know!!

Thank you (especially Vlk)!!!

But still I have to now to consider to deinstall Outpost (WebShield enabled) or not (WebShield disabled)…