I have created a VB 3.0 project that imports information into an
accounting package using Dynamic Data Exchange (DDE).  When I upgraded
to VB 4.0 (16 bit) my project slowed down 10 fold.  I have upgraded my
data objects to the new DOA formats so that is not slowing me down.  I
have also upgraded older projects to VB 4.0 and they are also
extremely slow.  Why the performance difference between 3.0 and 4.0.  

Another problem I have encountered is creating distribution disks.  I
have developed these projects in VB 4.0 (16 bit) so I should be able
to install the programs onto windows 3.x machines.  However when I do
this I get an error message as soon as the program tries to load a
form.  Something to the effect of Invalid File Format.  When I install
on a 95 machine everything works fine.  What am I doing wrong here?

Please respond in Email if possible.

Thanx

Lance