I'm guessing you have a 32/64 bit problem, as most XP installs are 32-bit.
I'd take a closer look at hServer, since handles are pointer-sized (4 bytes on
32 bit and 8 bytes on x64).
Roger
"Wedel, Jan" wrote in message
news:47ee7f193edc7e468e74bb0acfb17929011692c...@ex10mbox1b.hosting.inetse
Ok,
being pretty desperate, I tried a few ways of returning the data until I got it
partially working.
1. I returned null pointers:
return POINTER(OpcDa.tagOPCITEMRESULT)(), POINTER(HRESULT)()
Obviously, it did not return any sensible data, but it did not crash! The
client actu
