Report of an unknown invader!

I´m on WinXPpro and have quite a lot of "class3*.crl" files or shortcuts to them in one of the several TIF folders in XP.
* in my file name denotes several different additional words in the file name.

Most of the TIF folders are hidden and unless Windows Explorer is configured to show hidden files, You wouldn´t know they are there.

The "crl" extension stands for "certificate revocation list ". These are a means for programs installed on the computer to check if downloaded data comes from the correct source.

The reason for them being put back all the time is that they are needed. It is misleading that they are put in a TIF folder but I believe that the logic behind that is that they are updated every now and then. A flaw is that the obsolete ones don´t get deleted.

I´m using Ghost for system backup and on one occasion, when I restored the system, I took notes of what happened to those files. There were tens if not a hundred of them.
After restoring, there was only a few of them and after connecting to the internet there was one or two (don´t remember exactly) additions. The additions corresponded to the last additions before restoring.

Removing them doesn´t seem to hurt and clears the mess a bit but if they don´t get put back ...... ...... that´s the time to start worrying!

Christer