System.ServiceModel.Web.Extensions.dll:

System.ServiceModel.Web.Extensions.dll, C:\WINDOWS\system32, C:\Windows\SysWOW64\ Microsoft Dynamic-link library

System.ServiceModel.Web.Extensions.dll ?

2. CMD
3. : regsvr32 System.ServiceModel.Web.Extensions.dll Enter

RegSvr32.exe :

Regsvr32 [/u] [/n] [/i[:cmdline]] System.ServiceModel.Web.Extensions.dll

/n -  /i
/s – 
/u - 
/i -  [cmdline];  /u, 

Snappy Driver Installer

:

:

system86.dll systemdetection.dll System.Windows.Interactivity.dll System.Windows.Forms.dll.dll SystemInfo.dll systemcpl.dll system.windows.forms.resources.dll system86ta.dll System.Workflow.Runtime.dll System.IO.Compression.FileSystem.dll system86tt.dll system.windows.forms.datavisualization.dll.dll System.Data.SQLite.dll System.Xml.ni.dll SystemEventsBrokerServer.dll System.Net.Http.Formatting.dll System.Xml.Linq.ni.dll System.Xaml.ni.dll System.Windows.Controls.Data.DataForm.Toolkit.dll System.Windows.Controls.Data.Input.dll System.Json.dll system.management.automation.dll.dll System.Management.Automation.ni.dll System.Runtime.InteropServices.dll System.Globalization.dll System.IO.Compression.dll.dll System.Core.dll.dll System.Linq.dll.dll System.Drawing.ni.dll System.Diagnostics.Contracts.dll