Dan Parent wrote:

> Is it possible to make a call from .js to see if mailnews is actually 
> installed?  I'm planning on adding some basic email support into the 
> calendar project but before I enable any of the menu options for email 
> functionality I want to test whether mailnews is actually installed.  
> I know I could try to get the MsgAccountManager and if it exists 
> mailnews should be installed but is there a *better* way?  I'm 
> thinking something along the lines of getting a ComponentManager and 
> then asking whether the mailnews component exists.

Such as:
if ("@mozilla.org/messenger/account-manager;1" in Components.classes)

Alternatively you could supply the email support as a separate package...


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