MATLAB: Am I unable to use MLGetVar in a VBA Function with Excel Link 2.4 (R2006b)

Spreadsheet Link

The Excel Link 2.4 (R2006b) documentation states that MLGetVar can be used in macro subroutines but not in functions. However, the following VBA custom function seems to work:
Function foo()
      Dim returnValue As Variant
      On Error GoTo Handle
      MLEvalString "s = 99;"
      MLGetVar "s", returnValue
      foo = returnValue
      Exit Function
Handle:
      StringTest = "Error: " + Err.Description
End Function
When I use the following Excel Link based function:
 Function badGetVarFunc(varX As Variant) As Variant
     On Error GoTo ErrorHandler
     MLShowMatlabErrors "yes"
     MLEvalString "clear"
     MLPutVar "x0", varX
     MLEvalString "y0=-2*x0"
     MLGetVar "y0", varY
     badGetVarFunc = varY
 Exit Function
 ErrorHandler:
     MsgBox (Err.Description)
 End Function
in an Excel cell:
 =badGetVarFunc(13)

Best Answer

This bug has been fixed in Release 2007b (R2007b). For previous product releases, read below for any possible workarounds:
This is a documentation error in the function reference page for MLGetVar in Excel Link 2.4 (R2006b). MLGetVar can in fact be used in both macro subroutines and custom functions.
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