in reply to maintain control over very many files

I have now expanded on my needs and am looking for the following:

A perl script/prog which can monitor many folders on a local mchine (each folder representing a different site). THe perl script will be executed on a timly basis. If a new or modified file is found, the file will then be FTP'd to its relevant hosting machine.

All platforms are microsoft with IIS.

Can anybody recommend or tell me the best solution. Or is anybody already using a perl based solution such as this already? NOte that multiple site flows must be maintained.

thanks costas