Does anybody know how can i disable welcome page without using the < -np > command line option, its very the annoying and blocks the IDE for a few seconds on each start, does anybody know where can i configure this?
You can disable it in the registry: under HKEY_CURRENT_USER\Software\CodeGear\BDS\7.0\Known IDE Packages, find the entry named $(BDS)\Bin\startpageide140.bpl and modify the value by prepending an underscore (so it looks like '_Borland Start Page IDE Package'). You can re-enable it later by removing the underscore.
Easier, rename Bin\startpageideXXX.bpl and it won't ever show the welcome page again. Rename it back to reactivate. No registry needed.
Tested with latest Rad Studio XE as well.
You already know the answer to this, use the -np command line option. Simply change your file association for .dproj, .groupproj, .dpr etc. to include this option and it's all good!
来源：https://stackoverflow.com/questions/5003275/delphi-2010-hide-welcome-page