I'm running 64-bit also. I'm not sure of the .1.xxxx version tho.
Look at the file named "version" in your installation directory. It will tell you the exact version.
I also tested this using 11.5.1 32-bit on Windows 7 64 bit. No problems found.
OpenEdge Release 11.5.1 as of Wed May 6 19:02:33 EDT 2015
The only thing I can suggest at this point is for you to open a case with Tech Support and provide us with a simple standalone program which will reproduce the problem
Will do. Thanks Brian.
It is working for me with very simple code (procedure or class method). But not inside a bit more complex class method. Hmmmm...