Mail.Send Error in VBScript Job

I am trying to write a job in 24x7 scheduler 5.1.403 using vbscript. I am trying to use the mail.send function but it errors anytime I try to pass a variable for any of the parameters. It works fine if I hard-code each parameter. Here is a simplified example:

This Works:

	Code:
	Call Main Sub Main( ) Mail.Send "24x7@company.com","","user@company.com", "Subject" ,"Testing" End Sub

This code fails with the error: Type mismatch: 'Mail.Send'

	Code:
	Call Main Sub Main( ) mailsubject = "Subject" Mail.Send "24x7@company.com","","user@company.com", mailsubject ,"Testing" End Sub

Any ideas what I am doing wrong?

It looks like the declaration f the variable is missing

	Code:
	... Dim mailsubject mailsubject = "Subject" Mail.Send "24x7@company.com","","user@company.com", mailsubject ,"Testing" ...

Sorry, I left that out, but I had already tried declaring the variable and even tried setting a string constant. Any time I try to pass a variable or a constant to the mail.send function I get the error:

Type mismatch:'Mail.Send'

Thanks,
Jeff

Is this just a bug in the mail.send function?

Not sure why the difference, but the following seem to work

	Code:
	Dim mailsubject mailsubject = "Subject" Mail.Send "24x7@company.com", "","user@company.com", "Subject:", "Testing"

and this works too

	Code:
	Dim mailsubject mailsubject = "Subject" Mail.Send "24x7@company.com", "","user@company.com", _ "Subject:" & "test email", _ "Testing"