thanks for the replies. I have Malwarebytes on this machine already, but it found nothing. I should have kept those suspicious files and uploaded them to a multi-antivirus online scanner. As they were both suspicious java ".tmp" files, opened in winzip/7z showed multiple files, so anything within them could have been the virus cause, false or not-again, I should have noted all content-my fault! The first time I found those java entries, I did clean the Java cache completely as shown in Les28s post, and afterwards also selected not to store temp java files-but they did show up in avira again (in "username\Local Settings\Temp")-I dont know specifically why that happened.
Thanks for bleeping computer-ive heard of it, but I could post on there to find out how frequent java cache false positives occur, and if they are often related to an "OpenConnect.CF" Java virus, especially using Avira, which is known for more false positives than most antivirus programs. I have never heard of CCEnhancer, so am not really sure how safe it is to use, but along with possibly clearing out the java cache, it seems to add tasks that could be performed manually instead? According to this forum click here one of its main tasks is to add a "Winapp2.ini" file to CCleaner to clear out unwanted junk files-Ill give it a go, thanks click here