Question : Heap size on tomcat 6

I have Apache Tomcat 6 installed on my PC. If I deploy more than 2 applications in Tomcat, it starts giving me "Heap size: Out of memory" exception.

I have 4 GB RAM and windows XP OS.

Can someone please let me know how to increase the Heap Size.

Answer : Heap size on tomcat 6

add -Xmx1g to the JAVA_OPTS environemtn var