@Dizzi: On this resource I found that it is possible to let an application use 3GB max memory instead of 2 (though I'm still stuck at 1GB yet) ;-) ------------------------- http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx ...The maximum amount of memory that can be supported on Windows XP Professional and Windows Server 2003 is also 4 GB... The virtual address space of processes and applications is still limited to 2 GB unless the /3GB switch is used in the Boot.ini file.... The /3GB switch allocates 3 GB of virtual address space to an application that uses IMAGE_FILE_LARGE_ADDRESS_AWARE in the process header. This switch allows applications to address 1 GB of additional virtual address space above 2 GB. The virtual address space of processes and applications is still limited to 2 GB, unless the /3GB switch is used in the Boot.ini file. The following example shows how to add the /3GB parameter in the Boot.ini file to enable application memory tuning: [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(2)WINNT [operating systems] multi(0)disk(0)rdisk(0)partition(2)WINNT="????" /3GB -------------------