>I have created a form with an OLE object on it (OLE Tree). The 'tree'
>object works fine when it is run on a Windows 95 computer, but on a
>NT workstation machine I get the following error:
>
>OLE error code xxxxxx Class not registered. OLE object is being ignored.
>Record number 5
>
>And obviously the form then doesn't work. Any ideas on how to fix the problem
>
>Many thanks
>
>Stuart

Try to re-register OCX control. If it is MS Treeview, try Run...
regsvr32 comctl32.ocx

Nick