Sometimes, Maestro fails to start on Windows XP, or I can't run jobs. What's the reason for this?

Maestro can fail and jobs can fail to run or start on Windows XP when other applications are running that have used up the available desktop heap memory. This situation can arise in particular when your browser has many tabs open, or if it has been running for an extended period.

For Maestro startup, the following error messages can be displayed:

C:\Schrodinger2009\maestro fork failed: no error [10]

or

ERROR: No compatible maestro installation found

Usually the problem can be alleviated by closing down or restarting the other applications.

To decrease the chance of this problem occurring, you can increase the desktop heap size. To do so, log in as administrator and edit the following registry entry:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems]
Windows="%SystemRoot%\system32\csrss.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"

Change the SharedSection value (the second number of the triad) from 3072 (3MB) to a higher value.

Keywords: Maestro, Windows, start, run jobs

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