IIS runs a 32-bit. NET program on a 64-bit subnet
Because the 64-bit operating system does not support Microsoft OLE DB Provider for Jet drivers
Earlier Microsoft Access Driver (*.mdb) connections are also not supported.
So Microsoft OLE DB Provider for Jet used for Access and Excel databases is not available in the 64-bit version, which means that the following two connection strings are not working correctly:
"Provider=Microsoft.Jet.OLEDB.4.0;Data source=" &server.mappath (db) "Driver=microsoft Access driver (*.mdb);D bq= "&server.mappath (DB)
Workaround: In this case, you can only use one method to set the operating environment of IIS to 32-bit
IIS enables 32-bit application Mode
Application pool, advanced settings-allow 32-bit applications to run
The IIS deployment site is accessible only from the home page, and other links fail/run. net+access Web site-Possible cause: IIS does not have 32-bit application mode enabled