This documentation is relevant to WMWifiRouter version 1.20 and newer, and has been last updated to reflect the changes in version 1.25.
WMWifiRouter can be uninstalled like any other application, either from your computer through ActiveSync, or on the device itself by going to Settings, System, Remove Programs.
As with the installation, on some devices wifi has to be turned on for the uninstallation to complete.
If you have selected the Stored mode for wifi network management, after uninstallation, you will still have the ad-hoc network set-up on your device. You can remove this network manually by going to Settings, Connections, Wi-Fi, tap-and-hold the network (called WMWifiRouter by default) and selecting Remove settings. You may also have to remove the network from the computers / devices you have used to connect to WMWifiRouter.