Steve101,
Begin by clicking on Create/Hotspot/Button. This will do three things: 1. Create a button, 2. Open a Button Properties dialog box, and 3. Open a Button Edit panel at the bottom of your Lotus Notes window.
In the Button Properties you can name your button, select the typeface, style, and color of the text that appears on your button, determine the size of your button, whether the text will wrap, etc. (If you really want to get fancy, you can write code in html that will apply graphics, movement, color, pattern, etc.)
Next, in the right pane of the Button Edit panel at the bottom of your Lotus Notes window you will click on Add Action...
In the Add Action window that appears you will click on @Function Formula in the Action field.
In the Formula field you will type the following:
@Command([Execute]; "C://Program Files//Microsoft Office//Office//Powerpnt.exe"; "H://Pp//travelinglaptop.exe"
"C://Program Files//Microsoft Office//Office//Powerpnt.exe" will be where you substitue the path to your PowerPoint, and "H://Pp//travelinglaptop.exe" will be where you substitute the location of the shared network powerpoint presentation you wish to launch. Note the syntax of this command statement. The semi-colons, quotation marks, double forward slashes, parentheses, and brackets must all be present for this command sequence to work.
Hope this helps you.
MichiganTrotter