[wpf] What is the use of WPFFontCache Service in WPF? WPFFontCache_v0400.exe taking 100 % CPU all the time this exe is running, why?

What is acutally the functionality of WPFFontCache in WPF?. Sometime it is takeing too much CPU usage because of this system in hanging and my Application. Is there any problem disabling the service from the windows service. The big concern is why it is hanging my Application?.

Use This its is very useful for your solution:

1. Start > Control Panel > Administrative Tools > Services
2. Scroll down to 'Windows Presentation Foundation Font Cache 4.0.0.0' and then right click and select properties
3. In the window then select 'disabled' in the startup type combo

for win xp

Steps

1. [windows key] + R, type services.msc, search for the running instance of "Windows Presentation Foundation (WPF) Font Cache". For my case its 4.0. Stop the service.
2. [windows key] + R, type C:\Documents and Settings\LocalService\Local Settings\Application Data\, delete all font cache files.
3. Start the "Windows Presentation Foundation (WPF) Font Cache" service.

After installing Free BitDefender AntiVirus the services related to the AntiVirus used about 80 MB of my computer's Memory. I also noticed that after installing BitDefender the service related to windows Presentation Font Cache was also installed: "WPFFontCache_v0300.exe". I disabled the service from stating automatically and now BitDefender Free AntiVirus use only 15-20 MB (!!!) of my computer's Memory! As far as I concern, this service affected negatively the memory usage of my PC inother services. I recommend you to disable it.

Shortcut way: (windows xp)

1) click Start > run > services.msc

2) Scroll down to 'Windows Presentation Foundation Font Cache 4.0.0.0' and then right click and select properties