DPlot

I am trying to install the Excel add-in on a new laptop but the installation fails when the VBA code execution starts (workbook_open function):
System error &H80070057 (-2147024809) Wrong parameter
Out of memory

It's a Windows 7 64b machine with 16Gb of RAM.

Any clue on the parameter to look at?

Thx.

That sounds like something must be corrupted (assuming the error message is correct). There's really not any memory allocation going on in the workbook_open function - all it does is create the Add-In menu.

I'd first try re-installing. If that doesn't help and you're feeling adventurous, click the Developer tab, then "Visual Basic" on the far left. In the VB window click the + sign next to dplotlib.xla. If prompted for a password use "DPlot". Select Microsoft Excel Objects -> ThisWorkbook. You'll see "Private Sub Workbook_Open()". Change the name to some nonsense, e.g. Bookwork_Open() so that it isn't called. Save and then exit and restart Excel. You won't have a DPlot Add-In menu and will have to access the various Add-In functions from the Macros menu, but it might tell us more about what is going on.