AntiVir slows down MS-DOS applications

  • Thread starter Thread starter Chaos Master
  • Start date Start date
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Chaos Master

Hello!

I installed AntiVir Personal recently. It seems to work correctly,
except for a problem:

- When running AntiVir Guard and I run a MS-DOS application, the system
freezes for 3 or 4 seconds. Then the applications run as expected.

Q: What can be causing this problem? I know that it's AntiVir because if
I disable it, the applications run without this freeze.

Thanks!
--
Chaos Master®, posting from Canoas, Rio Grande do Sul, Brazil - 29.55° S
/ 51.11° W / GMT-2h / 15m .

"People told me I can't dress like a fairy.
I say, I'm in a rock band and I can do what the hell I want!"
-- Amy Lee
 
Chaos Master said:
Hello!

I installed AntiVir Personal recently. It seems to work correctly,
except for a problem:

- When running AntiVir Guard and I run a MS-DOS application, the system
freezes for 3 or 4 seconds. Then the applications run as expected.

Q: What can be causing this problem? I know that it's AntiVir because if
I disable it, the applications run without this freeze.
Click to expand...

You answered your own question. When invoking the DOS application, the
on-access AV first verifies the file before letting the OS to open it. The
verification may take longer if the inspected program is run-time compressed.

Regards
 
This is Zvi Netiv for forever:
You answered your own question. When invoking the DOS application, the
on-access AV first verifies the file before letting the OS to open it. The
verification may take longer if the inspected program is run-time compressed.
Click to expand...

Looks like, as I opened the DOS app with an HEX editor [1] and found
it's run-time compressed.

[1] Actually, the DOS app is an HEX editor with disassembler/executable
header info, which I like. So, I opened the app with itself! :D

[]s
--
Chaos Master®, posting from Canoas, Rio Grande do Sul, Brazil - 29.55° S
/ 51.11° W / GMT-2h / 15m .

"People told me I can't dress like a fairy.
I say, I'm in a rock band and I can do what the hell I want!"
-- Amy Lee

(My e-mail address isn't read. Please reply to the group!)
 
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