Jepp, some years ago "I" was trying that prog. But uninstalled that soon after install.

The problem is to delete some of these registry entries with HighJackThis. All those 3 entries that appear always after restart are also unable to deleted manually in the reg-editor.

O2 - BHO: (no name) - {A5366673-E8CA-11D3-9CD9-0090271D075B} - (no file)
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - (no file)
O2 - BHO: (no name) - {DA39029C-D291-A968-3FF4-D0990D5CB5FC} - (no file)

HKLM-Software-Microsoft-Windows-CurrentVersion-Explorer-Browser Helper Objects-{BDF3E430-B101-42AD-A544-FADC6B084872}

<-- that leads to the folder BHO where there is an entry containing something about NAV Helper. That folder can´t be deleted.

All other entries in HJTlog seem to be ok.