RUVATA, можно воспользовался VB6м вариантом (см. в программе
Api Viewer 2004, не забывая что при переходе (VB6 -> VB.NET) Long заменяется на Integer)
Код:

Declare Function CreateProcess Lib "kernel32.dll" Alias "CreateProcessA" ( _
ByVal lpApplicationName As String, _
ByVal lpCommandLine As String, _
ByRef lpProcessAttributes As SECURITY_ATTRIBUTES, _
ByRef lpThreadAttributes As SECURITY_ATTRIBUTES, _
ByVal bInheritHandles As Integer, _
ByVal dwCreationFlags As Integer, _
ByRef lpEnvironment As Integer, _
ByVal lpCurrentDriectory As String, _
ByRef lpStartupInfo As STARTUPINFO, _
ByRef lpProcessInformation As PROCESS_INFORMATION) As Integer