Is Presenter Plug-in 64-bit compatible?
The Presenter Plug-in is only available as a 32-bit plugin. It will run fine on 64-bit computers, but it not available for the 64-bit versions of web browsers.
Is ProShow 64-bit compatible?
ProShow has been tested with 64-bit versions of Windows, and it works normally. You don’t need to do anything special to use ProShow on these newer systems.
No audio when playing show in Windows Vista or Windows 7/8
If you do not hear audio when previewing a show in ProShow or when viewing an online show the most likely cause for this is the Presenter player is muted in the volume mixer. Windows Vista and Windows 7/ 8 have a new volume mixer that allows you to mute specific applications and the Presenter is most likely muted.