g1smd - 7:34 pm on Jan 14, 2013 (gmt 0)
matches literal MSIE
followed by ANY SINGLE CHARACTER
followed by a SINGLE DIGIT 1 to 6
followed by zero or more PERIODS
followed by ANYTHING.
and many other things it should not.
. means ANY character
\. means a literal period
* means zero or more times.
\.* means something different to .*
Never use .* at the beginning or in the middle of a RegEx pattern.
\.* is always an error.