After CS6 InDesign was completely converted to 64-bit application.However for windows platform 32-bit version was still supported. Hence for Windows 32-bit and 64-bit both type of versions were part of installation.
To distinguish between 32-bit and 64-bit version of InDesign, following targets are used.
For Windows Use:
#target "indesign-9.032" //If want use 32-bit version indesign
#target "indesign-9.064" //If want use 64-bit version indesign
For Mac Use:
#target "indesign-9.064" //As Most of the MAC machine are already 64-bit , Only 64-bit InDesign is provided for Mac.