Service Stopped incorrect function Event ID 7023

Navision version 2.6 We are currently experiencing the following error Event ID 7023 Description The Financials Server GVLIVE service terminated with the following error. Incorrect Function. We also get a Dr Watson error 87 application at the same time. This error is occuring approximately 2 to 3 times a week.

we found that reducing the length of the directory & file names of the database files removed this problem (i.e. use c:\DB\P1.fdb+d:\DB\P2.fdb+e:\DB\P3.fdb). It is as if there is a maximum length for the commandline when starting the server.