| vui | Visual Navigation Suite Exported Settings |
| vv | Virt Viewer Configuration |
| vvi | Lifecycle Visualization Configuration File |
| vwi | AllStar Visitor Watch Configuration |
| wbx | Mikrotik RouterOS Winbox Configuration |
| wcr | Ergane Configuration |
| wcst | Wirecast Setup |
| wda | NetManage RUMBA Configuration |
| wee | Wee Configuration File |
| wfc | Windows Wireless Network Settings |
| wfw | Windows Firewall Exported Rules |
| wgc | WatchGuard Log Server Config File |
| wgp | Logitech WingMan Game Profile |
| whd | WinUAEX WHDLoad Settings |
| whz | WinUAEX Zipped WHDLoad Settings |
| wlm | HP-UX Workload Manager Configuration |
| wme | Windows Media Encoder Session Profile |
| wos | Words of Worship Output Settings Data |
| wpx | Windows Printer Description |
| ws | IBM Personal Communications WorkStation Profile |
| wscx | Wondershare SurveyCreator Data |
| wsdt | IAR Embedded Workbench Workspace Settings |
| wst | WinSSHD Settings |
| wti | WebTranslateIt Configuration |
| wtp | Word2TeX Preferences |
| wzconfig | WinZip Configuration |
| wzz | Catalog Builder Settings Data |
| x4k | XML4King Configuration |
| xbs | XnConvert Configuration |
| xc | RSNetWorx Configuration |
