Outlook Mail Message/VBA/Autosignature

Is there a way to include the autosignature that is setup in Outlook to be included on the message created by the following code (without having to include the html code for the autosignature within the vba code)?

Public Function Emailer(ccode, coname, emailto, bodyinfo)
Dim objOutlook As Object
Dim objMailMessage As Outlook.MailItem

Set objOutlook = CreateObject("Outlook.Application")
Set objMailMessage = objOutlook.CreateItem(0) ' 0 = MailItem.

With objMailMessage
.To = emailto 'Email address of recipient
.Subject = ccode & " - " & coname
.HTMLBody = bodyinfo
.Send
End With

Thanks for your help!

The following code does not include the html document on the message:

Public Function Emailer(ccode, coname, emailto, bodyinfo)
Dim objOutlook As Object
Dim objMailMessage As Outlook.MailItem

Set objOutlook = CreateObject("Outlook.Application")
Set objMailMessage = objOutlook.CreateItem(0) ' 0 = MailItem.

With objMailMessage
.To = emailto 'Email address of recipient
.Subject = ccode & " - " & coname
.HTMLBody = bodyinfo & "<!--#include file=""c:\signature.html"" -->"
.Send
End With

I'm not sure what to put as the path for the signature since I'm on a NT Workstation.

Any help would be appreciated!