A Visual Basic project is designed to connect to an excel
spreadsheet using the datalink object found in the Vb
toolbox. When trying to connect to the spreadsheet at
design time, I get the error "Can't Find Installable
ISAM", followed by failure to connect. Also on start-up,
VB programs using the ado excel object to create excel
spreadsheets invoke this error message.

Microsoft associates this error with Access (Knowledge
Base article 150494) and recommends, among other things
checking the paths for the ISAM drivers found in the
MSACC20.ini file, however this file can't be found.

I am not using Excel, not Microsoft Access. Why do I get
this error?