how to Compact access MDB file to SYS file

[Eric]

Every time I compact the xxx.mdb, xxx.mdb has been updated, but xxx.sys has
no change. Could someone tell me what the relationship between .mdb and .sys
file and if there is a relation between them , how can I update the .sys
file?
Thanks

 

[Brendan Reynolds]

Files with a .sys extension are usually operating system or hardware driver
files. There is, as far as I am aware, no standard use of this extension in
Microsoft Access applications. It is, of course, possible that the developer
of the app may have used the extension in some non-standard way. If you are
curious you could try opening a *copy* of the file in Notepad, but it would
be safer not to mess with the original if you don't know what it is.