Hello,
I uninstalled Clamwin after problems (system hanges up during scan of deep archives) .....

Now I am trying Antivir from a German distributer (for free - same as ClamAV) but I am very suprised that ClamWin (without a on access Scan) needs more Ram than Antivir (with on access scan).

How could that be? Is it only the Tray Icon on the taskbar that needs so much system performance or what could that be)

tray application size has nothing in common with onaccess scan. Onaccess scanning driver is a system component and would show in the kernel Memory usage.

current version of Clamwin uses python interpreter which is memry demanding. this will chnage in version 1

It seems that ClamWin is RAM intensive. I'm running Win 98 OS with 340 MB total memory (don't know how much is free), and I'm unable to do anything else while scanning with ClamWin--can't even minimize the program.

Regards,

What's your setting for the process priority ?
(See ClamWin preferences - Advanced)

You might want to change that and see if it helps.

The scan priority is already set at low, so that's almost all I can do. I've tinkered with some of the other configuration options also--turned off scanning within archives and stopped screen progress reports.

Thanks, but I guess there's no substitute for RAM, and, hopefully, they will lower the RAM requirement when they terminate Python dependency.

Regards,

I found that it's just as easy to disable the background service completely (since it's not a real-time scanner anyway) and just schedule scans on my own using windows scheduler. Works just fine. Updating the virus DB is something I schedule to run before a scan runs... for that I use the script in this thread:

https://forums.clamwin.com/viewtopic.php?t=111&highlight=removing+tray+icon