XP decides opening new windows is no fun….

I happen to do a lot of multi-tasking. I have 4 copies of Visual Studio 2008 open with Management Studio for 2008 open plus a number of different browser windows and explorer folders. I eventually run into this invisible wall where no new windows get created. No new tabs, links stop working, applications won’t launch etc. Whats the temporary fix? I start closing windows and boom, I can now open up new ones.

It seems Windows has a very unfriendly bouncer that says the club is full and until people decide to leave, no one gets in.

I get these awesome event log entries:

Application popup: ftpit.exe – Application Error : The application failed to initialize properly (0xc0000142). Click on OK to terminate the application.

So, what is the fix? Disclaimer, changes to your system can cause inoperability if done improperly. Advice is without warranty 🙂

The system seems to allocate memory to the desktop heap by certain system boot parameters. All handles GDI object and User objects seem to use this 48mb desktop heap.

The solution I tried and sitting around to see if works well is to change these boot params.

I am changing the reg key:

HKEY_LOCAL_MACHINESystemCurrentControlSetControlSession ManagerSubSystemsWindows
From : %SystemRoot%system32csrss.exe ObjectDirectory=Windows SharedSection=1024,3072,512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=16
To: %SystemRoot%system32csrss.exe ObjectDirectory=Windows SharedSection=1024,8192,2048 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=16
You can read more about it on MSDN.
If this solves your problem, let me know.

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