With the 64-bit-mode HiRDB/Developer's Kit, you can create UAPs for both the 64-bit mode and the 32-bit mode. With the 64-bit-mode HiRDB/Run Time, you can create UAPs for both the 64-bit mode and the 32-bit mode. However, not all UAP languages can be used to create and execute UAPs in the 64-bit mode. Table 11-4 shows the client support range of 64-bit-mode HiRDB.

Table 11-4 64-bit-mode HiRDB client support range

Language/functionality		Creation and execution of UAPs for 32-bit mode	Creation and execution of UAPs for 64-bit mode
Language	C	Y	Y
	C++	Y	Y
	COBOL	Y	N
	OOCOBOL	Y	N
XA interface		Y	N
Multi-connection facility		Y	Y*

Y: Can be created and executed.

N: Cannot be created or executed.

^* Because, in 64-bit mode, kernel threading (native threading) is supported instead of DCE threading, pay particular attention to which libraries you link. For details about the libraries to link, see the HiRDB Version 8 UAP Development Guide.