Close all (browser) windows & rescan with hijackthis. When the scan is finished place a check in the box to the left of the following entries & click 'fix checked' :
R0 - HKCUSoftwareMicrosof tInternet ExplorerMain,Start Page = C:WINDOWSsecure.html
R1 - HKCUSoftwareMicrosof tInternet ExplorerMain,Default _Page_URL = C:WINDOWSsecure.html
R0 - HKLMSoftwareMicrosof tInternet ExplorerMain,Start Page = C:WINDOWSsecure.html
R1 - HKLMSoftwareMicrosof tInternet ExplorerMain,Default _Page_URL = C:WINDOWSsecure.html
R0 - HKCUSoftwareMicrosof tInternet ExplorerMain,Local Page = C:WINDOWSsecure.html
R0 - HKLMSoftwareMicrosof tInternet ExplorerMain,Local Page = C:WINDOWSsecure.html
R0 - HKCUSoftwareMicrosof tInternet ExplorerToolbar,Link sFolderName = Koppelingen
Uninstall Messenger Plus as it comes with LOP. You can reinstall it without the sponsor.