Windows 2008 - IIS7 DefaulAppPool crashing

Having an issue with IIS7 on a Windows 2008 SP2 32 bit install with 1GB RAM. This is running as a guest VM on a Linux VMWare Server 2.0 host. IIS becomes unavailable and I get the following errors in the logs:

ID: 5011
Source: WAS
A process serving application pool 'DefaultAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '608'. The data field contains the error number.

ID: 5011
Source: WAS
A process serving application pool 'DefaultAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '2784'. The data field contains the error number.

ID: 5011
Source: WAS
A process serving application pool 'DefaultAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '1036'. The data field contains the error number.

ID: 5011
Source: WAS
A process serving application pool 'DefaultAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '692'. The data field contains the error number.

ID: 5009
Source: WAS
A process serving application pool 'DefaultAppPool' terminated unexpectedly. The process id was '3028'. The process exit code was '0xc0000374'.

ID: 5002
Source: WAS
Application pool 'DefaultAppPool' is being automatically disabled due to a series of failures in the process(es) serving that application pool.

Then someone has to go to IIS Services, DefautAppPool, Start. I check the logs and there is nothing in the W3SVC1 logs. Just a blank where there was an issue. All the entries look normal before then. No errors.

This is getting annoying.....