See if checking Regenerate Component IDs on the Build Option page fixes the problem.

>
>Using VFP 8 (sp1) I am trying to create a multi-threaded .dll, and during the build I get the error message "Class definition QUOTEENGINE not found", but this class is definitely there in the top-level program (let's call it Main.prg). In fact Main.prg only contains the class, nothing else. The 1st line of the class definition is
>DEFINE CLASS QuoteEngine AS SESSION OLEPUBLIC
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>Despite the error, a .dll is still created (and a .vbr, but no .tlb file), but it doesn't work.
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>I noticed in the 'Server' tab of the 'Project Info' dialog there was a registered class that I didn't recognise, so I recreated the project from scratch, but the error still occurs (no classes registered in the Servers tab).
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>A few months ago this .dll compiled without any problems, and the project has not changed since then.
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>Could there be something in the registry blocking the build? Can anyone give me any pointers how to solve this problem? Any help would be appreciated.
>
>Alan