For the gif89.dll
First you must register with regsvr32.exe. The command line is regsvr32 gif89.dll .
After that you can go in VFP -> Tools -> Options -> Controls, select ActiveX controls, and then select gif89 class.
Then you can go to the Form Control -> View Classes -> ActiveX Controls.
Now you have gif89 control in the Form Control toolbar.
Drag & drop on the form. You have now a new object on the form that have:
Play, Stop Methods; AutoSize, AutoStart, Embed, Filename, Glass, Speed Property.
You can fill the filename poperty with the name of the gif file, set autostart .t. or .f., set speed, set autosize .t. or .f.
With Play method you the the object to play your file, with stop to stop playing your file.
It's simple ...

Best regards,
Nitu Petru