How does your explorer.exe act during login?

My login operation has been slowing down on my laptop xp sp2. Given all the disk crunching going on, I took a peek by starting filemon while the notification area icons etc were still being loaded up.

What I found was weird to say the least, why is explorer.exe scanning through various programs and shortcut files during startup? It seems to go to some random looking offset, read a bit and then set the file information to look as if no one had read the file. Explorer.exe acts like it was scanning these programs for something? Has my explorer turned into a virus scanner or what? I do not have any programs installed that should cause this behaviour that I know of.

This is just one of the program "scans" that slow down my login noticeably.

4968 20:31:31 explorer.exe:692 FASTIO_QUERY_OPEN C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Attributes: A

4969 20:31:31 explorer.exe:692 FASTIO_QUERY_OPEN C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Attributes: A

4970 20:31:31 explorer.exe:692 FASTIO_QUERY_OPEN C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Attributes: A

4971 20:31:31 explorer.exe:692 IRP_MJ_CREATE C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Options: Open Access: All

4972 20:31:31 explorer.exe:692 FASTIO_QUERY_BASIC_INFO C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Attributes: A

4973 20:31:31 explorer.exe:692 IRP_MJ_SET_INFORMATION C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS FileBasicInformation

4974 20:31:31 explorer.exe:692 IRP_MJ_READ C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Offset: 0 Length: 12

4975 20:31:31 explorer.exe:692 IRP_MJ_READ* C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Offset: 0 Length: 4096

4980 20:31:31 explorer.exe:692 FASTIO_QUERY_STANDARD_INFO C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Length: 6011392

4981 20:31:31 explorer.exe:692 FASTIO_QUERY_STANDARD_INFO C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Length: 6011392

4982 20:31:31 explorer.exe:692 IRP_MJ_READ* C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Offset: 5177344 Length: 32768

4985 20:31:31 explorer.exe:692 IRP_MJ_CLEANUP C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS

4986 20:31:31 explorer.exe:692 FASTIO_QUERY_OPEN C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Attributes: A

4987 20:31:31 explorer.exe:692 FASTIO_QUERY_OPEN C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Attributes: A

4988 20:31:31 explorer.exe:692 IRP_MJ_CREATE C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Options: Open Access: All

4989 20:31:31 explorer.exe:692 FASTIO_QUERY_BASIC_INFO C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Attributes: A

4990 20:31:31 explorer.exe:692 IRP_MJ_SET_INFORMATION C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS FileBasicInformation

4991 20:31:31 explorer.exe:692 IRP_MJ_READ C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Offset: 0 Length: 12

4992 20:31:31 explorer.exe:692 FASTIO_QUERY_STANDARD_INFO C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Length: 6011392

4993 20:31:31 explorer.exe:692 FASTIO_QUERY_STANDARD_INFO C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS Length: 6011392

4997 20:31:31 explorer.exe:692 IRP_MJ_CLEANUP C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS

4998 20:31:31 explorer.exe:692 IRP_MJ_CLOSE C:\Program Files\EA GAMES\Battlefield 2 Demo\BF2.exe SUCCESS

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