Steve,

Thanks for your responses, to this and my other questions.  They have been
very helpful.

Basically, I'm looking for a way to loop through a PPT presentation, and
identify every text string that could be embedded in the presentation
(whether it is visible to the viewer or not).  I'm looking for text that is
in textboxes, captions, lists, control tips, alternate text, default values,
...

In Access, my Office application of choice, each object has a properties
collection, I just assumed that PPT objects would have the same collection .
If I write:

   Dim prop As Property
   Set obj = Forms("frm_Splash").cbo_Slide
   On Error Resume Next
   For Each prop In obj.Properties
       Debug.Print prop.Name, prop.Type, prop.Value
   Next

Then I'll get a list of 50 or so properties (see a partial list below) that
belong to that combo box.  By restricting my search to those properties with
Type=8 (text), I can quickly search through all of the properties, and
capture the control, the property, and the value associated with that text
property.  Since PPT does not seem to have this functionality.  I'm going to
have to identify all of the various object types, then search to see what
properties they have and check for those properties individually.  This will
involve a huge amount of additional reseearch and coding.

EventProcPrefix              8            cbo_Slide
Name           8            cbo_Slide
ControlType    2             111
ControlSource  8
Format         8
ConditionalFormat            8209         Null
DecimalPlaces  2             255
InputMask      8
RowSourceType  8            Table/Query
RowSource      8            qry_frm_Splash_cbo_Slide_Num
ColumnCount    2             1
ColumnHeads    11           False
ColumnWidths   8
BoundColumn    3             1
ListRows       2             8
ListWidth      8            0
StatusBarText  8
LimitToList    11           False
AutoExpand     11           True
DefaultValue   8
IMEHold        11           False
IMEMode        2             0
IMESentenceMode              2             3
ValidationRule               8
ValidationText               8
Visible        11           True
DisplayWhen    2             0
Enabled        11           True
Locked         11           False
AllowAutoCorrect             11           True
TabStop        11           True
TabIndex       2             5
Left           2             8880
Top            2             1140
Width          2             1920
Height         2             259
BackStyle      2             1
BackColor      3             16777215
SpecialEffect  2             2