Hurrraaaaayyyyy, Its working...

Thanks Doc and Chrispy. Here is what I did. I run LsnrCTL.exe and entered Start. Like It used to inform me, the Listener didn't started . However, the error msg was "Windows Error opening Log file, Permission denied". Hmmm, sounds path leading, I checked NTFS permission on c:\oracle folder. It was allowed Full Control only to Administrator. When I also added Everyone to the permission list and started tnslistner, It did start. Although I am logged in as Administrator I wonder why It also needs "Everyone" right on the folder.

Anyway, All is well that ends well, thanks to both of you again.