Thanks Adam. The artice you supplied solved my problem.

(Will also no doubt come in handy for future help files I try and open)

 

For anyone else who has the same problem.

 

1. Copy help files to a local drive (not a LAN share - this includes desktop if like me your desktop is supplied via LAN \ Active Directory)

 

2. Double click to open the file.

 

3. Uncheck the checkbox "Display this message in the future".

 

Worked for me on my Vista dev pc.

 

Paul.