>I need to change two fields in the expr field of an frx, but leave the rest. I'm doing this by scattering the memo and using an alines command. Then I loop through the array and change what I need. What I don't know how to do is write the array back to the memo.
>
>Can anyone help me with the syntax?

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Why not do the replace in situ?
Lets say your Frx expr field contains

Alias = "system"
Database = ..\data\acc_recv.dbc
CursorSource = "system"
Name = "Cursor1"

You could update both instances of the word system by doing the following:

UPDATE MyFrx ;
	SET Expr = STRTRAN( Expr, "system", cNewValue ) ;
	WHERE ObjType = 26

Note that it will probably be a good idea to do the reverse STRTRAN() again when you have finished using the Frx in its modified state, otherwise your system will either have to programatically determine the value to StrTran() or carry it forward between runs. Also note that StrTran() is case sensitive.