...is there an error handling mechanism similar to VB?
I have to transfer numerous files to and from several locations on the net, and on occasion a userid account is not active on a given server; I want to trap the error that results from the FTPFileExists command and continue in to the next file, user or server.

You can turn on "ignore errors" job option, but then you have to do all error checking yourself, in other words if the FTPFileExists fails, the script will continue running, and so after FTPGetFile you may want to add call to FileExists to check if the specified file was downloaded.

: ...is there an error handling mechanism similar to VB?
: I have to transfer numerous files to and from several locations on the net,
: and on occasion a userid account is not active on a given server; I want
: to trap the error that results from the FTPFileExists command and continue
: in to the next file, user or server.

Yup, that'll work just fine - thanks!
: You can turn on "ignore errors" job option, but then you have to do
: all error checking yourself, in other words if the FTPFileExists fails,
: the script will continue running, and so after FTPGetFile you may want to
: add call to FileExists to check if the specified file was downloaded.