To run two or more .VBS script parallely - vbscript

Question

I have two .vbs file say a.vbs and b.vbs.Now both are written for the same Excel,but would work on 2 different sheets.So can we run those in parallel?
EDIT
a.vbs will update sheet2 and b.vbs will update sheet3.But for both source sheet is sheet1.
Please advice how to set such environment
CODE A
Option Explicit
Dim objExcel1
Dim strPathExcel1
Dim objSheet1,objSheet2
Dim IntRow1,IntRow2
Dim ColStart
Set objExcel1 = CreateObject("Excel.Application")'Object for Condition Dump
strPathExcel1 = "D:\AravoVB\Copy of Original Scripts\CopyofGEWingtoWing_latest_dump_21112012.xls"
objExcel1.Workbooks.open strPathExcel1
Set objSheet1 = objExcel1.ActiveWorkbook.Worksheets(1)
Set objSheet2 = objExcel1.ActiveWorkbook.Worksheets("Bad Data")
objExcel1.ScreenUpdating = False
objExcel1.Calculation = -4135 'xlCalculationManual
IntRow2=2
IntRow1=4
Do Until IntRow1 > objSheet1.UsedRange.Rows.Count
ColStart = objExcel1.Application.WorksheetFunction.Match("Parent Business Process ID", objSheet1.Rows(3), 0) + 1
Do Until ColStart > objSheet1.UsedRange.Columns.Count And objSheet1.Cells(IntRow1,ColStart) = ""
If objSheet1.Cells(IntRow1,ColStart + 1) > objSheet1.Cells(IntRow1,ColStart + 5) And objSheet1.Cells(IntRow1,ColStart + 5) <> "" Then
objSheet1.Range(objSheet1.Cells(IntRow1,1),objSheet1.Cells(IntRow1,objSheet1.UsedRange.Columns.Count)).Copy
objSheet2.Range(objSheet2.Cells(IntRow2,1),objSheet2.Cells(IntRow2,objSheet1.UsedRange.Columns.Count)).PasteSpecial
IntRow2=IntRow2+1
Exit Do
End If
ColStart=ColStart+4
Loop
IntRow1=IntRow1+1
Loop
objExcel1.ScreenUpdating = True
objExcel1.Calculation = -4105 'xlCalculationAutomatic
CODE B
Option Explicit
Dim objExcel1
Dim strPathExcel1
Dim objSheet1,objSheet2
Dim IntRow1,IntRow2
Dim Flag
Dim IntColTemp,IntRowTemp
Dim Strcmp1,Strcmp2
Flag=0
IntColTemp=1
IntRowTemp=3
Set objExcel1 = CreateObject("Excel.Application")'Object for Condition Dump
If Err.Number <> 0 Then
On Error GoTo 0
Wscript.Echo "Excel application not found."
Wscript.Quit
End If
strPathExcel1 = "D:\VA\CopyofGEWingtoWing_latest_dump_21112012.xls"
objExcel1.Workbooks.open strPathExcel1
Set objSheet1 = objExcel1.ActiveWorkbook.Worksheets(1)
Set objSheet2 = objExcel1.ActiveWorkbook.Worksheets(2)
IntRow1=4
IntRow2=1
Do While objSheet1.Cells(IntRow1, 1).Value <> ""
objSheet2.Cells(IntRow2, 1).Value = objSheet1.Cells(IntRow1, 1).Value
IntColTemp=1
Flag=0
'This will travarse to the Parent Business Process ID column horizantally in the excel.
Do While Flag=0
If objSheet1.Cells(IntRowTemp,IntColTemp).Value="Parent Business Process ID" Then
Flag=1
End If
IntColTemp=IntColTemp+1
Loop
IntColTemp=IntColTemp-1
'MsgBox(IntColTemp)
Strcmp1=trim(objSheet1.Cells(IntRow1, 1).Value)
Strcmp2=trim(objSheet1.Cells(IntRow1,IntColTemp).Value)
If Strcmp1=Strcmp2 Then
objSheet2.Cells(IntRow2, 2).Value="Parent"
Else
objSheet2.Cells(IntRow2, 2).Value="child"
End If
IntRow1=IntRow1+1
IntRow2=IntRow2+1
Loop

Answer 1

Working on two different sheets should be possible by putting something like this in both of your scripts:
strPathExcel1 = "D:\CopyofGEWingtoWing_latest_dump_21112012.xls"
On Error Resume Next
Set objExcel1 = GetObject(, "Excel.Application") ' attach to running instance
If Err.Number = 429 Then ' if that fails
Err.Clear
Set objExcel1 = CreateObject("Excel.Application") ' create new instance
If Err Then ' if that still fails
WScript.Echo Err.Description & " (0x" & Hex(Err.Number) & ")"
WScript.Quit 1 ' report error and terminate
End If
objExcel1.Workbooks.Open strPathExcel1
End If
On Error Goto 0
However, I doubt that this approach would gain you enough performance to justify the additional complexity.
In CODE A replace the lines
Set objExcel1 = CreateObject("Excel.Application")'Object for Condition Dump
strPathExcel1 = "D:\AravoVB\Copy of Original Scripts\CopyofGEWingtoWing_latest_dump_21112012.xls"
objExcel1.Workbooks.open strPathExcel1
with the above code block.
In CODE B replace the lines
Set objExcel1 = CreateObject("Excel.Application")'Object for Condition Dump
If Err.Number <> 0 Then
On Error GoTo 0
Wscript.Echo "Excel application not found."
Wscript.Quit
End If
strPathExcel1 = "D:\VA\CopyofGEWingtoWing_latest_dump_21112012.xls"
objExcel1.Workbooks.open strPathExcel1
with the above code block.