Excel data can't be import

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VB

I want to import excel data into database through code but there is error when its import data.and one thing more i want to do same thing for both web application and windows application but its work fine in web application but not in windows and i have added reference of excel also.
Code for import excel:

ObjOledbConnection = New System.Data.OleDb.OleDbConnection(provider=Microsoft.ACE.OLEDB.12.0;data source=excelfilepath;Extended Properties=Excel 8.0)
     Dim objexcel As New Excel.Application
     Dim objExcel As Object = CreateObject("Excel.Application")

     Dim objBook As Object = objExcel.Workbooks.Open(excelFilePath)
     For Each oSheet As Excel.Worksheet In objBook.Sheets
         objDtLoopConfiguration = New DataTable
         ObjOledbCommand = New System.Data.OleDb.OleDbDataAdapter("select * from ["&oSheet.Name &"$]";, ObjOledbConnection)
         ObjOledbCommand.Fill(objDtLoopConfiguration)
         objDtLoopConfiguration.TableName = oSheet.Name
         mobjds.Tables.Add(objDtLoopConfiguration.Copy())
     Next

Same code use for web and windows but its work for web application but not in windows

When i trace this code then file is open but when i data fill in data table then following error raised:"The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine"

Plz give solution as soon as possible.