I would appreciate if anyone can tell me whether the following is a bug
and how can I overcome it.

Under 32 bit environment,

I have tried both OCX and print engine call of Crystal Reports, both
methods can not display an MDI child preview window.

However under 16 bit environment, both methods can work properly.

Thanks in advance for any help which you can offer.

Have you looked into the Demo applications that's shipped with Crystal ?
If not, look especially on the sample application thats located in your
crystal folder, C:\Program Files\Crw\Sample\Crpedm32\Pedemo32.vbp. It
explains a great deal about how this is done and you can also use the
helpfile, C:\Program Files\Crw\developr.hlp.

Good luck !!! :)

'****************************************************
' Peter Williamsson, Enator
'****************************************************