If Blue Prism is running as a 32-bit process and the modeled application is 64-bit, what mode should be selected?

When Blue Prism is running as a 32-bit process and the modeled application is a 64-bit application, the recommended approach is to select the external, 64-bit mode. This mode allows Blue Prism to interact correctly with the 64-bit application, leveraging its capabilities and ensuring proper communication between the two.

Choosing external, 64-bit mode enables the Blue Prism process to operate as a bridge that effectively commands the 64-bit application while managing the necessary dynamic libraries and handling the intricacies of 64-bit operations.

In contrast, internal modes tend to restrict interactions to the bitness of the Blue Prism process itself, which in this case is 32-bit, making it unsuitable for directly interfacing with a 64-bit application. Therefore, opting for the external mode is essential in scenarios where there is a mismatch between the bitness of Blue Prism and the target application, ensuring that processes perform correctly and reliably.