I didn't manage to run .BAT file because of dos character set's problem.
What I save to .BAT File "netsh interface ip set address ""Yerel A" & ChrW(167) & " Ba" & ChrW(167) & "lant" & ChrW(141) & "s" & ChrW(141) & """ static " & IP & " " & SubnetMask & " " & Gateway & " 1".I create .BAT file with VB.NET.I managed to run in "cmd.exe" with VB.NET.""netsh interface ip set address ""Yerel A" & ChrW(167) & " Ba" & ChrW(167) & "lant" & ChrW(141) & "s" & ChrW(141) & """ static " & IP & " " & SubnetMask & " " & Gateway & " 1