>I have an install routine developed with Inno and ISTool. A user with Windows Vista 64 bit is having problems running the install. They made some progress by changing the compatibility mode to run in 32bit mode on the setup.exe. But inno unpacks the setup routine and a then continues on. The error being displayed is...
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>Unsupported 16-bit application
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>The program or feature (name) cannot start or run due to incompatibility with 64-bit versions of 
>windows. Please contact the software vendor to ask if a 64-bit windows capible version is available.
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>On the Compiler tab of the SETUP screen of ISTool, there are 2 textboxes (not checkboxes) in the "architecture" section that read "Install in 64 bit mode" and "Allowed". Any ideas on what should be there? And does that impact 32 bit installs?

ArchitecturesAllowed=x86 x64 ia64
ArchitecturesInstallIn64BitMode=x64 ia64

An installation can run in one of two modes: 32-bit or 64-bit.

64-bit mode is selected if the user is running a 64-bit version of Windows and the system's 
processor architecture is included in the value of the ArchitecturesInstallIn64BitMode [Setup] section 
directive. Otherwise, 32-bit mode is used.