Resolving Memory Errors at Enterprise Designer Startup
If an out of memory error occurs at Enterprise Designer startup, change the setting in the heapSize.bat file. This file is resides in the folder jcaps51\edesigner\bin, where jcaps51 is the folder
where Enterprise Designer is installed.
To Resolve Memory Errors
Open the heapSize.bat file in a text editor.
Change the heap size settings to no less than 512MBytes.