news:3df65b1a@newsgroups.borland.com...

To sum it up, don't use it. It barely works and rarely give you the benefits
it is supposed to provide.

If you can optimize your header files using the rules found at
http://www.bcbdev.com/, compile and link speed should vastly increase all
but eliminating the need for background compilation.

sm

benefits

i upgraded to BCB 5 only because of background-compiling. When doing normal
compiling BCB always catches focus, that I cannot work with other
applications at the same time.

my headers are optimized, I have a compile time of 3 Minutes for about 100
Units, and 8 Minutes when compiling in background (Win 2000, 3:00 - 3:30 in
Win ME)

Harald

Which Windows do you use, as this doesn't happen for me in BCB4 or
BCB5. I can easily swap to another app while BCB is compiling.

Well, there's optimized and then there is Harold Howe optimized.
It pays to double check:

http://www.bcbdev.com/articles/pch.htm

--
Jonathan Arnold         C/C++/CBuilder Keen Advice:
http://www.keen.com/categories/categorylist_expand.asp?sid=5156620
    Comprehensive C++Builder link site:
http://www.buddydog.org/C++Builder/c++builder.html

There was a bug that if compiling project groups BCB came to forground when
switching groups or something similar. It drove several people wild!
Rgds Pete

news:3df75b6d$1@newsgroups.borland.com...

Which Windows do you use, as this doesn't happen for me in BCB4 or
BCB5. I can easily swap to another app while BCB is compiling.

Well, there's optimized and then there is Harold Howe optimized.
It pays to double check:

http://www.bcbdev.com/articles/pch.htm

--
Jonathan Arnold         C/C++/CBuilder Keen Advice:
http://www.keen.com/categories/categorylist_expand.asp?sid=5156620
    Comprehensive C++Builder link site:
http://www.buddydog.org/C++Builder/c++builder.html