Running 32-bit Applications on 64-bit Windows

Known issues of running 32-bit Applications on 64-bit Windows

There are some common issues when running 32-bit application on Windows x64 Edition.

Driver compatibility - some hardware companies haven't written 64-bit Windows drivers for their products.
Many 32-bit Windows Explorer extensions fail to work with 64-bit Windows Explorer (due to the fact that 32-bit programs cannot interface with 64-bit in-proc DLLs and vice-versa). An example of this is the inability to install the context-menu options for applications such as zip utilities.
Most 16-bit applications are not supported (32-bit software with 16-bit installers based on ACME Setup versions 2.6, 3.0, 3.01, and 3.1 and InstallShield versions 5.x will run correctly)
No native support for Type 1 fonts.
No support for connectivity with the Apple iPhone
Windows Media Player 11 for this version of windows unusually runs as a 32-bit application. The only use for the specific release of Windows Media Player 11 is that the other applications such
as Media Sharing do in fact, run 64-bit.