Operating System Windows Vista.

When I open Microsoft Word 97 I get a Microsoft Visual Basic error message "
Compile error in hidden module: Autoexec" If I click OK the program appears
to function properly.

When I click on Excel 97 shortcut three Windows open namely:
Microsoft Visual Basic - PDF Writer.xla (running)

PDF Writer.xla-AutoExec (Code)

PDF Writer.xla- Registration Database (Code) with a Microsoft Visual Basic
error message "compile error: can't find project or library"
When I click on close I get message "This command will stop the debugger"
Click on OK and Excel opens and appears to function normally.

Both of these programs worked perfectly under XPPro and were working on
Vista
before these error messages started to appear.

Advice as to how to correct this fault associated with the Office Programs
would be appreciated.

Thank you