>David,
>
>FWIW,

It's worth a lot...thanks

All of my lowest level classes that are derived from the VFP BaseClasses have this error method:
>
>ObjError( this, nError, cMethod, nLineNo )
>

Yeah. This is just about how my ON ERROR procedure interface looks right now. I presume 'this' is the handle you use to determine the context in which the error occured and thereby customize the handling of the error. At runtime, is it possible to use 'this' to derive THISFORM and/or other objects which are further up the execution control hierarchy. For example, right now I pass the variable pcErr to my ON ERROR routine which determines its response based on the value of pcErr. At key points in a procedure, I set the value of pcErr to correspond to 'the current state of processing'. Is that how you use 'this'? ;-)

(OK...I know you're tempted to respond 'That depends on what the meaning of is, is.' ... so please try to avoid temptation!)

Also, more generally, are there other attributes that you've built into your own baseclasses that you find apply to just about any project? Error handling is a natural, and I'm thinking the same thing about environment variable initialization. Anything else?