@dennishea
yes, line 28 was a typo but it got through the earlier compilers - as did the issues with Case which was altered in version 6 to match the compiled version which uses the C# Case structure. I hadn't recompiled it with the newer compilers so I hadn't updated the source.
You need the updated ControlsExDesktop library to avoid the nameclash in optimised compile
Updated FormExDestop and ControlsExDesktop libraries and I have updated the original reminder post with a new zip with the modified source and new libraries that DOES now compile optimised.
Thanks for pointing this out.