You can find if you're using the Standard or Basic Notes client by opening Lotus Notes, selecting Help > About IBM Lotus Notes. You'll see the current configuration cited on the 5th line down.
Now, getting back to the Standard client Java Heap Size, here's how to check the size and make adjustments.
Navigate to the following file on the computer running Notes.
{NotesProgramDirectory}fra
Often, the directory and file will be similar to this:
C:\program files\ibm\lotus\notes\fram
In this folder, look for the file "jvm.properties". Edit this file in WordPad.
One of the first lines that aren’t commented out (preceded by #) is:
vmarg.Xmx=-Xmx256m
Change that line to roughly half of your available ram. For example, a computer with 2GB of RAM would have a setting like this:
vmarg.Xmx=-Xmx1024m
Make sure you close the Lotus Notes client before you do this, and that all the Lotus Notes client processes have stopped.
Notes: !!!You might find several \com.ibm.rcp.j2se.{version
Refer to this link for information about the Lotus Notes 8 Standard and Basic client.
http://www-01.ibm.com/supp
by: Bill-Hanson on 2010-06-25 at 12:22:19ID: 16137
C:\Program Files (x86)\IBM\Lotus\Notes\fram
There are actually 2 settings of interest in this file: The starting heap size (vmarg.Xms) and the maximum heap size (vmarg.Xmx).
We set both of these to 1024, but don't exceed your physical memory size, or the JVM will crash.
Here are the default values...
vmarg.Xmx=-Xmx256m
vmarg.Xms=-Xms48m
We change them to...
vmarg.Xmx=-Xmx1024m
vmarg.Xms=-Xms1024m