Moving the IBM Informix IFMXDATA directory to another machine
First, make sure this chunks/datafiles are from Windows OS too. 
Isn't compatible read a datafile froma different plataform (windows VS Unix VS Linux)


You cannot just move the chunks/datafiles and expected the engine just re-adapt to new path. There internal pointers at theirs configurations where the path is saved and need some administration steps to change.
Basically , you can do this only at a Backup / Restore, using ontape or onbar utilities. 

Copying the files can be considered like a cold backup and this way is possible to rename the path. 

For that you will need to use the ontape -p -e -rename ... command. 
More details, check the manual online .

If your datafiles is from older version which is installed at the target server, I'm not sure if this restore will work because you are doing a upgrade at same time... 

Maybe you need install the same version of the engine used to copy the files, restore them with ontape , shutdown the engine, install the new version and upgrade ...