Need Help on "waitfor" command in net::Telnet Module

Hi,
Can anybody help me in writing command "waitfor" for string
"C:\WINNT\Profiles\mfcf0508>" while using net::Telnet module.

I tried the below format :

$telnet->waitfor('/"C\:\WINNT\Profiles\mfcf0508>".*$/i');

Getting error as : pattern match timed-out

Plz help me

You would probably get a faster response if you posted your question in a Microsoft Windows programming forum.