Can someone explain what might cause this

[waldonj]

Several years ago I stopped compiling my apps to machine code, and
instead distributed them as interpreted code, which compiled quicker
and performed better. I am currently on 10.5 with latest available
build. Recently I added less than a dozen lines of code to resolve an
issue, and several users were unable to launch the application. I had
seen this previously, and found if I created an additional pbl, and
moved several objects from an existing pbl to the new one, in effect
making the sizes of a large pbd smaller, that the user would be able
to launch the application. No error messages are being issued, the
application was just not launching, so I suspected a memory issue on
these isolated user PCs. Yesterday morning I had 3 such issues, I
reduced the largest pbd to below 500 kb and the users were then OK.
Today more users reported the problem. I lowered the maximum pbd size
below 400 kb, but that didn't help. After trying several things, I
recompiled the same application as machine code. Each user that
reported a problem was then able to launch the application. The size
of the DLLs in the machine code were larger than their corresponding
pbds, so that blew away the size theory. Can anyone explain what
might be going on in this scenario. Users and development done on XP
SP3.

[Jeremy Lakeman]

It probably has nothing to do with the size, but perhaps with the
ancestry of your classes and how you build the application.

Sometimes a class will fail to compile but you can still build the exe
and pbd's.

Or it could be related to the versions of pb dll's on the client
machine.

[Rich Frantz]

I suspect you are doing incremental builds. Switch to FULL builds.

[waldonj]

> I suspect you are doing incremental builds. Switch to FULL builds.- Hide quoted text -
>
> - Show quoted text -

I always do full builds. In fact when I first switched to interpreted
deployments, part of it was due to the extremely long compilations of
my larger applications into machine code.

[HFada]

> my larger applications into machine code.- Hide quoted text -

>
> - Show quoted text -

I work on an enterprise PB system with many PBD's some of which are
larger than 10MB.
How can you be sure that your system is not crashing silently?
If you can reproduce what your users get then try build your app with
the PBD option and run your EXE with the "/pbdebug" flag then inspect
the generated file from bottom upwards to see why it crashed - which
object was last accessed... I've seen our system suddenly disappear
without any error messages (or GPF's) which usually relates to recent
changes that corrupt memory locations.
BTW, what were the latest changes that you made - do you use any
dynamic calls etc...
cheers
H