File not found error when running an exe using Shell function

Question

I am running a sub from a userform that is supposed to run an exe file, found in the working folder, as follows:

Sub RunProcessor()
    If MsgBox(\"Run simulatio         


        

Answer 1

ChDir will only work to change the current directory to another on the same drive - you need to use ChDrive first if you want to switch to a folder on a different drive.

Better yet, pass the full path to Shell and skip changing the current directory.

Sub RunProcessor()
    If MsgBox("Run simulation?", vbYesNo) = vbYes Then
        Shell (ThisWorkbook.Path & "\runsims.exe")
    End If
End Sub