I’ve have number of automation scripts (written in Ruby but I think this question could apply to other languages) that use Win32OLE interface to connect to MS Office, BlueZone (Mainframe emulator) etc.

When I first wrote them I used:

• 32-bit version of Ruby
• 32-bit version of Host Software (BlueZone, MS Office)

When trying to use the 64-bit version of BlueZone with my script (installing the 32bit version works)

I am wondering is there any limitation of using win32ole interface (aka scripting language and the host software need to be 32bit) or name (win32) just a legacy and it should work with any combination and BlueZone has bug with their installation.