Upgrade Access 2000 to 2010 then 2016 VB question - ms-access

Question

Help please...I have successfully upgraded from Access 2000 to 2010 then to 2016 with no compile errors however I have an exe file within a form in the VB code and it doesn't run anymore or send an error message. The project is a weighbridge and has been operating on access 2000 for 15 or more years with many changes to the design, where the exe file captures the data from the weighbridge "signal" box and sends it to my form. This exe no longer works in Access 2010 (the go between program during upgrade) or in Access 2016. This is crucial to the project, I no longer have the original code in VB or a copy of VB on my computer although I do have a copy in a text file left by the original programmer. Can anyone tell me Why Access 2016 does not acknowledge this exe. Is there a reference that needs to be clicked? I am lost.
The code is
Private Sub Form_Load()
On Error GoTo Err_Form1
Select Case strDocName
Case "GetGrossWeight"
Set objFrmCtrl = Forms!ConsignmentsIN.GrossWeight
Warning.Caption = "Get Gross Weight In"
Case "GetTareWeight"
Set objFrmCtrl = Forms!ConsignmentsContractIN.TareWeight
Warning.Caption = "Get Tare Weight In"
Case "GetGrossWeightcontract"
Set objFrmCtrl = Forms!ConsignmentsContract.GrossWeight
Warning.Caption = "Get Gross Weight In"
Case "GetTareWeight"
Set objFrmCtrl = Forms!ConsignmentsContract.TareWeight
Warning.Caption = "Get Tare Weight In"
End Select
OpenEXE
Exit_Form2:
Exit Sub
Err_Form1:
MsgBox Error$
Resume Exit_Form2
End Sub
Private Sub OpenEXE()
On Error Resume Next
GrossValue = Shell("c:\weighbr\auto\Weight.exe", 6)
If Err.Number = 53 And GrossValue = 0 Then
MsgBox "Can't find program 'Weight.exe'", vbInformation, "Alert"
End If
' ...
End Sub

Answer 1

According to the documentation for SHELL:
Runs an executable program and returns a Variant (Double) representing the program's task ID if successful, otherwise it returns zero.
Your code gets a task ID, not the result of executing the .exe program (if nothng else prevents execution). So, you shouldn't expect, in any case, to get a value generated by this program.
You should use the debugging tools to step into this Sub and actually figure out what it does.
Check if Alternative to Call Shell() ? (2000) can help you out, and also Access 2000 to 2002 (Shell command).
It seems that the Shell function might have changed a looong time ago.