Datapatch Fails with Error:”open2: IO::Pipe: Can’t spawn-NOWAIT: No such file or directory $ORACLE_HOME\\rdbms\admin/catcon.pm” Error :: Connecting to database…OK catcon: ALL catcon-related output will be written to C:\temp/sqlpatch_catcon__catcon_10336.lst catcon: See C:\temp/sqlpatch_catcon_*.log files for output generated by scripts catcon: See C:\temp/sqlpatch_catcon__*.lst files for spool files, if any open2: IO::Pipe: Can’t spawn-NOWAIT: No such file or directory at D:\oracle\product\12.1.0.2\dbhome_1\\rdbms\admin/catcon.pm line 470 Solution :: Add path “c:\Windows\System32″ in 'PATH' environment variable. set PATH=c:\windows\system32;%ORACLE_HOME%\perl\bin;%ORACLE_HOME%\bin;%PATH% echo %PATH% c:\windows\system32;D:\oracle\product\12.1.0.2\dbhome_1\bin;D:\oracle\product\12.1.0.2\dbhome_1\perl\bin And then execute datapatch command datapatch -verbose