Could someone suggest a way to work around antivirus applications

[timeless]

C:\home\mozilla.org\mozilla-central>hg qpop -a && hg pull -u -r
default && hg qpush -a
Patch queue now empty
pulling from https://hg.mozilla.org/mozilla-central
searching for changes
adding changesets
adding manifests
adding file changes
added 160 changesets with 664 changes to 544 files
abort: The system cannot find the file specified:
C:\home\mozilla.org\mozilla-central\modules/libpr0n/test/crashtests/285595-1.gif

for more information about why this file is unable to reach the disk,
please see https://bugzilla.mozilla.org/show_bug.cgi?id=285595

Scan type:  Auto-Protect Scan
Event:  Security Risk Found!
Risk: Bloodhound.Exploit.31
File:  C:\home\mozilla.org\mozilla-central\modules\libpr0n\test\crashtests\285595-1.gif
Location:  Quarantine
Computer:  mine
User:  me
Action taken:  Quarantine succeeded : Access denied
Date found: Sunday, April 26, 2009  2:21:58 AM

I know that eventually mercurial may provide some support for partial
checkouts, however, I need a solution sooner, rather than later.

:(

In this case, I'm using Symantec Client Security, however it's not
surprising that this file (and similar) would be rejected by antivirus
applications or that hg might be asked to manage them.