Windows7 includes a number of new features, such as advances in touch and handwriting recognition support for virtual hard disk, improved performance on multi-core processors, improved boot performance and kernel improvements
Browsers
IE8(only IE8 and above) 
Messengers
POD-3.6
Yahoo
G talk
Media Players
VLC Media Player
Zoom Player
Win-Media Player Classic 12.0
Apple QuickTime
Audacity
Foobar 2000 0.9.6
Winamp
WinDVD
PowerDVD
MS Office
Microsoft Office 2003 Professional SP3
Microsoft Project Professional 2003
Microsoft Office 2007 SP1
Adobe Reader 9.0
ERP Softwares
Oracle 11.5.10.2 and Jinitiator -1.3.1.25, 11i application will not open directly in windows7
machine with IE8, please click ‘HERE’ to get the steps to open oracle apps in windows7.
Oracle R12 and Java-6.
Siebel CRM Applications – version:8
SAP GUI
HP Automation Tools
Quality Center -10
QTP-10
VPN
Juniper VPN -6.3
Cisco VPN 5.0.x.xx
Uninstall any previous version of Cisco VPN client that you may have installed
Reboot
Download the Citrix DNE Update and install it.
Reboot
Take ownership and delete ndis.sys (in c:\windows\system32\drivers).
Take ownership and delete ndis.sys.mui (in C:\windows\system32\drivers\en-us).
Install Cisco VPN Client 5.0.04.0300.
Reboot
Windows 7 will repair itself (should take a few seconds) and automatically reboot.
Cisco VPN Client should work without any other tweaks
Others:
Oracle 9.2 ( It will give warning message while installing if still click on continue it will get install properly)
TOAD 7.6
Winzip and Win Rar
Telnet will not work in wndows7 by default. Installation :
Click on Start Menu >> Control Panel >> Programs
Click on Turn Windows Features On or Off and Mark Telnet Client and click OK
