Library for Windows Icon
Steel System Icons
Commercial usage: Not allowed
Windows 7 Icon
Windows 8 Icon
Grey Live Messenger Icon
Live Messenger Icon
Green Sharepoint Folder Icon
Latt for OS X Icons
Grey Sharepoint Folder Icon
Purple Sharepoint Folder Icon
Yellow Sharepoint Folder Icon
Windows Live Messenger Icon
TuilE Communications Icons
Client Account Template Icon
FatCow Hosting Icons
Commercial usage: Allowed