In Excel VBA you can activate What's This Help (that uses the ? icon in
the top of a form) by specifying the help file path in the Help File
Name field on the General tab of Project Properties and then assigning
help context ID's to the various form controls (while also setting the
form's WhatsthisButton and WhatsThisHelp properties to true). This
works fine as long as you use WinHelp 4 and not HTML help and you can
change the help file path in the the Project Properties
programmatically with Application.ThisWorkbook.VBProject.Helpfile =
MyHelpfilepath.

All is OK until you Lock the Project for Viewing in the the Protection
tab of the project properties. The call to the VBProject.Helpfile
property then produces an error as locking the Project protects the
Project properties. Does anyone know a way around this?

(Note: I am aware that you can use the Application.Help method to
access HTML help files from form controls but I am wanting to implement
the Whats This Help specificaly).

Thanks in advance,
Seisman