How to prevent a window from showing up when a program is launched

Hi guys!
I'm looking for a way to make run a program in an invisible way..
I've managed to hide its icon from the dock, but I cannot avoid its maining window appearing when it opens...
Could I solve this trouble by deleting some lines in the info.plist file?
Thank you in advance!
PS Someone posted the same question some moths ago,
here:
https://discussions.apple.com/thread/2630616?start=0&tstart=0
but if I delete
<key>NSMainNibFile</key>
<string>MainMenu</string>
the program doesn't work!!

please define what you mean by 'in an invisible way', and please tell us what application you're talking about. and it's really not a good idea to delete the reference to the nib file, because the nib can store a lot of information the program needs.
you probably want to set either the LSUIElement key to 0 or the LSBackgroundOnly key to 1 in the info.plist file. The first can show windows at need, but doesn't otherwise show to the user; the second never shows anything to the user. However, either might interfere with the operation of the app, depending on what the app is designed to do, and doing this might break the code signature for the app which will make the app un-openable until you reinstall the original.
if you just want an app to open invisibly at boot time, that's a different issue.

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insgesamt 0
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pkg/usr/man/man1:
insgesamt 0
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Posted: Sat Jan 28, 2006 8:45 am Post subject: How to prevent a file from stripping?
I'm building vacation for Arch64 but should be the same for 32bit. PKGBUILD looks like this:
Code:
# $Id: PKGBUILD,v 1.1 2004/01/21 15:43:15 dale Exp $
# Maintainer: dale <[email protected]>
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Code:
[andyrtr@workstation64 vacation]$ ls -lRA pkg/
pkg/:
insgesamt 0
drwxr-xr-x 4 andyrtr users 96 2006-01-28 09:32 usr
pkg/usr:
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drwxr-xr-x 2 andyrtr users 96 2006-01-28 09:32 bin
drwxr-xr-x 3 andyrtr users 72 2006-01-28 09:32 man
pkg/usr/bin:
insgesamt 24
-rwxr-xr-x 1 andyrtr users 16864 2006-01-28 09:32 vacation
-rw------- 1 andyrtr users 470 2006-01-28 09:32 vaclook
pkg/usr/man:
insgesamt 0
drwxr-xr-x 2 andyrtr users 48 2006-01-28 09:32 man1
pkg/usr/man/man1:
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strip: /var/abs/extra/system/vacation/pkg/usr/bin/vaclook: File format not recognized
install: strip fehlgeschlagen
make: *** [install] Fehler 1
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