Why on the project manager of PG5 2.1.430 adding Files to the project with the option ‘Add Files’ does crash the project manager?

Due of an error in PG5 2.1.430 the function ‘Add Files’ on the project manager, Program Files menu does crash the project manager as soon as a selected external file should be added to the project.

Solutions:

Either do not use the function ‘Add Files’ to add other files to the project but,
copy/paste the files in to the project
or
extract the file Spm52.exe from the attached zip file and do copy/paste the file to the PG5 installation directory.
c:\Program Files\SBC\PG5 V2.1.430\

New Spm52.exe has the version 2.1.430.4 old Spm52.exe which cause the problem is the version 2.1.430.0