Any tips or tricks for speeding up Parallels?

I'm running the current version on a 2.0GHz iMac with 3 GB ram and a 250GB drive. Wondering if there are tips for maximizing speed when running Parallels--

Anything will be helpful. It's already pretty fast, but Win is noticeably slower than in Boot Camp.

Thanks ahead of time--

 

1. Set memory for Virtual Machine to less than 1 GB
2. Perform Mac and Windows side disk defragmentation http://www.xvsxp.com/system/system_tools_defrag.php
3. Set Adjust memory limit from Auto to Manual at Parallels Desktop -Preferences-Memory, and set limit a bit more higher than VM memory
4. Disable Themes in Windows XP serives.msc stop Themes service
5. If you are running in Coherence, try to switch to Single Window, or lower Mac resolution
6. Some antivirus software can load CPU when Heuristic Prediction is set, or Tamper protection (Symantec, MacAffey), adjust settings to risk you are supposed, high security settings is not always good idea, as it can also affect software running
7. Run msconfig , and disable unneeded startup items
See http://www.netsquirrel.com/msconfig/msconfig_xp.htm

 

Please explain

Please be more specific about disabling themes.

And the link http://www.netsquirrel.com/msconfig/msconfig_xp.htm concerning disabling startup items does not work. do you have another?

 

How to disable services
http://www.jasonn.com/turning_off_unnecessary_services_on_windows_xp

Msconfig
http://www.netsquirrel.com/msconfig/msconfig_xp.html

 

Only 1 Meg of memory?

When I ran the install it gave it 2.5 Meg of my 4 available.

Is there some secret to only 1 Meg? Most systems will use all they can get.

I want to use this on all our machines for a few windows applications, but mine seems very slow...

Thanks.