exe extension on a filename indicates an executable file. WLIDSvc stands for Windows Live ID Sign-in Assistant Ser vi ce
Microsoft Account interconnects most devices using Microsoft operating systems and online services but is not industry-wide. Signon uses the service 'wlidsvc.dll' in 'C:\Windows\System32' which executes under 'svchost.exe'. Originally envisioned as Microsoft Passport to be a single sign-on for all Web commerce, (resisted on privacy grounds), in 2012, for Windows 8, Live ID was renamed 'Microsoft Account'. 'Wlidsvc.exe' was Microsoft's Windows Live ID Sign-in Assistant, which installed in 'C:\Program Files\Common Files\Microsoft Shared\Windows Live' and worked with the Live ID Service Monitor, 'wlidsvcm.exe', to authenticate the user's login credentials to Microsoft's Windows Live ID service and help keep the connection.
The genuine wlidsvc.exe file is a software component of Windows Live ID Sign-in Assistant by Microsoft Corporation.
