Anti virus around us

Do you have any idea about how many antivirus around us...

then look in to these

Comparison

Software	Windows	Mac OS X	Linux	FreeBSD	Unix	License	On-demand scan	On-access scan	Boot-time scans	Blocks over 80% of zero day threats thoroughly (by Av-test.org)	Has advanced features (includes antiphishing and web based protection)	Tested by Av test.org with a 3.0 and above for malware removal	Cost / Price
360 Safeguard	Yes	No	No	No	No	Proprietary	N/A	N/A	N/A	No	No	No	N/A
Ad-Aware Pro Antivirus+Antispyware	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes (if set to do so)	Yes	Yes	No	N/A
Agnitum Outpost Security Suite	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes (if set to do so)	N/A	No	No	N/A
AhnLab V3 AntiVirus	Yes	No	No	No	No	Proprietary	Yes	Yes	No	N/A	No	No	N/A
AOL Active Virus Shield(discontinued)	Yes	No	No	No	No	Proprietary	Yes	Yes	No	No	Yes	N/A	N/A
avast! Free Antivirus	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	Free
AVG Anti-Virus Free	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	No	No	Free
Avira Free Antivirus (Formanly AntiVir Personal Free)	Yes	Currently in beta	Yes	No	Yes	Proprietary	Yes	Yes	No	Yes	adding Web Protection Since v10 SP2	Yes	Free
AVZ (Russian)	Yes	No	No	No	No	Proprietary	Yes	No	N/A	No	No	N/A	N/A
Bitdefender	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes	Yes	Yes	N/A	N/A
BullGuard	Yes	No	No	No	No	Proprietary	Yes	Yes	No	Yes	Yes	Yes	N/A
CA Anti-Virus	Yes	Yes	Yes	No	Yes	Proprietary	Yes	Yes	?	No	Yes	N/A	N/A
Celframe Antivirus Free Global Community Edition	Yes	Yes (With X11)	Yes (With WineHQ)	Yes (With WineHQ)	Yes (With WineHQ)	Proprietary	Yes	Yes	Yes (if set to do so)	No	N/A	N/A	N/A
Check Point ZoneAlarmAntivirus	Yes	No	No	No	No	Proprietary	Yes	Yes	No	Yes	No	No	N/A
Cisco Security Agent	N/A	N/A	N/A	N/A	N/A	Proprietary	N/A	N/A	N/A	Yes	N/A	N/A	N/A
Clam AntiVirus	Yes; seeClamWin	Yes; seeClamXav	Yes; seeClamAVandClamTk	Yes	Yes	GPL	Yes	Only onFreeBSDand Linux	N/A	No	No	N/A	Free open sourcefreedom software
ClamWin	Yes	No	No	No	No	GPL	Yes	Yes (withWinpoochor Clam Sentinel)	Yes (with Clam Sentinel)	No	No	N/A	Free open sourcefreedom software
Comodo Internet Security	Yes	Yes	No	No	No	Proprietary	Yes	Yes	Yes	Yes	N/A	N/A	N/A
CyberSoft VSTK	No	No	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes (if set to do so)	N/A	No (unless API is used)	N/A	N/A
Dr. Web	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	N/A	No	No	N/A	N/A
Dr. Web CureIt	Yes	No	No	No	No	Proprietary	Yes	No	No	N/A	No	N/A	N/A
DriveSentry	Yes	No	No	No	No	Proprietary	N/A	N/A	N/A	No	N/A	N/A	N/A
Element Anti-Virus	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	No	Yes	N/A	N/A
Emsisoft Anti-malware	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	No	Yes	N/A	N/A
eSafe	N/A	N/A	N/A	N/A	N/A	Proprietary	N/A	N/A	N/A	N/A	N/A	N/A	N/A
eScan Anti-Virus	Yes	No	Yes	No	No	Proprietary	Yes	Yes	No	Yes	Yes	N/A	N/A
ESET NOD32 Antivirus	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	N/A
Faronics Antivirus	Yes	No	No	No	No	Proprietary	Yes	Yes	N/A	N/A	Yes	No	N/A
F-Prot	Yes	No	Yes	Yes	Yes	Proprietary	Yes	Yes	No	N/A	N/A	N/A	N/A
F-Secure	Yes	Currently in pre-beta [1]	Yes	No	No	Proprietary	Yes	Yes	No	Yes	N/A	Yes	N/A
Fortinet FortiClient End Point Security	Yes	No	No	No	No	Proprietary	Yes	Yes	No	Yes	Yes	Yes	N/A
G DATA Software	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	N/A
IKARUS virus.utilities	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	No	No	N/A	N/A
Immunet	Yes	No	No	No	No	Proprietary	Yes	Yes	N/A	Yes	No	N/A	N/A
Intego VirusBarrier	No	Yes	No	No	No	Proprietary	Yes	Yes	N/A	N/A	Yes	N/A	N/A
Intego Internet Security Barrier (Dual Protection)	Yes	Yes	No	No	No	Proprietary	Yes	Yes	N/A	N/A	Yes	N/A	N/A
iolo System Shield AntiVirus and AntiSpyware	Yes	No	No	No	No	Proprietary	Yes	Yes	No	N/A	N/A	N/A	N/A
K7 Computing K7 Antivirus Plus	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	Yes	No	N/A
K7 Computing K7 Total Security	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	N/A
K7 Computing K7 Ultimate Security	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	Yes	No	N/A
Kaspersky	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	N/A
McAfee AntiVirus Plus	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	No	No	N/A
Microsoft Security Essentials	Yes	No	No	No	No	Proprietary	Yes	Yes	No	Yes	No	Yes	Free
NANO AntiVirus (Russian)	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes (if set to do so)	N/A	No	No	N/A
Norman	Yes	No	Yes	No	No	Proprietary	Yes	Yes	No	Yes	Yes	No	N/A
nProtect	Yes	N/A	N/A	N/A	N/A	Proprietary	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Ozone Antivirus	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	Yes	N/A	N/A
Panda Cloud Antivirus Free Edition	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	Free
PC Tools AntiVirus	Yes	Yes	No	No	No	Proprietary	Yes	Yes	No	Yes	No	Yes	N/A
PC Tools AntiVirus Free Edition	Yes	Yes	No	No	No	Proprietary	Yes	Yes	No	Yes	No	Yes	N/A
PC Tools ThreatFire 4.7	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	Yes	N/A	N/A
Quick Heal AntiVirus Pro	Yes	Yes	No	No	No	Proprietary	Yes	Yes	N/A	No	Yes	No	N/A
Rising Antivirus	Yes	N/A	N/A	N/A	N/A	Proprietary	N/A	N/A	N/A	No	No	N/A	N/A
SmartCOP Internet Security	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes	Yes	Yes	N/A	N/A
Sophos Anti-Virus	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	No	N/A	Yes	No	N/A
Spyware Doctor (PCTools) with AntiVirus - offered in the Google Pack	Yes	N/A	N/A	N/A	N/A	Proprietary	N/A	N/A	N/A	Yes	No	Yes	N/A
Symantec Norton Antivirus	Yes	No	No	No	No	Proprietary	Yes	Yes	Yes	Yes	No	No	N/A
Trend Micro Internet Security	Yes	Yes	No	No	No	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	N/A
TrustPort Antivirus	Yes	No	No	No	No	Proprietary	Yes	Yes	No	Yes	Yes	Yes	N/A
TTLivescan 2011	Yes	No	No	No	No	Proprietary	Yes	No	No	Yes	No	N/A	N/A
Untangle Gateway Platform Virus Blocker	No	No	No	No	No	Open source	No	Yes	No	N/A	No	N/A	N/A
Vba32Antivirus	Yes	No	Yes	Yes	No	Proprietary	Yes	Only on Windows	No	Yes	Yes	N/A	N/A
VIPRE Antivirus + Antispyware	Yes	No	No	No	No	Proprietary	Yes	Yes	No	Yes	Yes	Yes	N/A
VirusBuster	Yes	No	Yes	Yes	Yes	Proprietary	Yes	Yes	No	No	N/A	N/A	N/A
Webroot SecureAnywhere Antivirus	Yes	Yes	Yes	Yes	Yes	Proprietary	Yes	Yes	Yes	Yes	Yes	Yes	N/A
Windows Live OneCare	Yes	No	No	No	No	Proprietary	Yes	Yes	No	Yes	Yes	Yes	N/A

[edit]Thanks for Wikipedia

Open Multiple yahoo messenger on single Computer

Do you want to use multiple yahoo in your computer?

Then Follow these steps

Click on Start -> Run…

Type Regedit in Run text box and hit enter to launch Registry Editor

Open HKEY_CURRENT_USER > Software > Yahoo > Pager > Test.

On the right pane, right click and click on New > DWORD value

Rename the new registry key as Plural.

Right Click on “Plural” and Select “Modify”. Change the cell value in “Value Data” to 1 (For Vista & Windows 7 users)