Go here to read about PowerScan http://www.auditmypc.com/process/powerscan.asp
You're Windows 98 manual has that product key on it.Without the key you want be able to install.
I notice some strange programs running when I hit task manager cntrl+alt+del and I was trying to delete them. The files were associated with a trojan containg PowerScan and Sidefind. When I went to add/delete progams to uninstall a file associated with Sidefind, it asked if I was sure I wanted to delete it, I hit yes and all of my programs suddenly had the default windows icon, I couldn't access any of my programs or file nor my recycle bin. I restarted my system the windows 98 set up wizard appeared and required me to log in and provide my product key. It was caused by the trogan (I don't have the product key). I can't log on to windows. In safe mode I get the error that explorer has caused an ivalid page fault in module explorer.exe. When I go to my task manager theres nothing there to end task. So I only have access to DOS. I need to know if theres a way to restore my system because when I check my directory all of my files are there but masked by the trogan. I would like to know how to delete the files in DOS associated with the trogan. I have a HP Provillion with windows 98 OS and I'm unable to restore using my HP restore disk (I get errors). Is there anyone fimiliar with this virus and the masking it causes is there a way to do this? Apparently the virus has changed my windows boot priority. Is there a way to get it back to the default settings? I'm open to any suggestion short of reformatting my hard drive.