Problem with commitinfo file not expanding %s

[Mark Owens]

Hi
The title really says it all. My commitinfo file looks like this:
DEFAULT perl checkXML.pl -f %s

I'm using WinCVS (v1.2) on my client and CVS (v1.11) on the server.
If I understand correctly, the above commitinfo line should cause one invocation of the script per commit.

The perl script simply outputs the value of the "-f" argument.
It's outputting "%s" but I was hoping for the actual filename ;-)

Has anyone seen this behaviour before?
Many thanks
Mark