On Windows operating systems, the IBM® Data Server Driver Package software simplifies application deployment. This driver, which has a small footprint, is designed to be used by independent software vendors (ISVs) for mass application deployment scenarios that are typical of large enterprises.
The db2diag.log file path for the IBM Data Server Driver Package software on Windows operating systems is %SYSTEM APP DATA PATH%\IBM\DB2\COPYNAME, where %SYSTEM APP DATA PATH% is Drive:\Documents and Settings\All Users\Application Data\ for Windows 2003 and Windows XP and Drive:\ProgramData\ for Windows 2008 and Windows Vista. The value of COPYNAME is the name of the IBM Data Server Driver Package copy that you provide during the installation. You can use the DB2_DIAGPATH environment variable and the DIAGPATH CLI keyword to alter the location of the db2diag log files.