My Excel 2007 gives this message (OLE not available) when I start Excel. I have a windows service running which uses Microsoft.ACE.OLEDB.12.0 but that does close the resources afterwards and even when I reboot the machine, I keep getting this error, even when the windows services (which uses the ACE) has not been started yet.

guest OS is windows 2003 SP2 by the way.

OLE not available

Excel version: 12.0.6654.5003 SP2 MSO 12.0.6562.5003

Can this occur when I build the service on a 64 bit system? I have defined x86 at the build configuration in Visual Studio. The server is a 32bit server.

Edit: I have tried to launch Excel with this ignore DDE checkbox checked: http://excel.tips.net/T003046_Ignoring_Other_Applications.html

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