After three weeks I renamed the driver(?) FDCDNT.SYS, and the problems
disappeared.
The register is still trying to activate it, but can of course
not find it.
Location: c:\windows\system32\FDCDNT.sys
I have been Googling, and Googling but havent found the answer.
Found the name of the company that produces it, but
couldnt find the company on the Internet.
The process Filter Device belongs to the software Filter Device for WinNT/2k/XP by Silence of Troubles United Company Ltd. I checked the MD5 checksum.
Does anybody know what program installed FDCDNT.SYS, and its purpose?
I am grateful for any advice, and apologize if this question
is not appropriate for this forum.
I have Windows XP Home Sp2
Here are some register entries:

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