Users interested in Portable protel 99 se generally download:
View and convert Gerber RS-274x and Protel ASCII PCB files. The solution supports Protel v2.5 to v2.8 formats and can convert them into PostScript, PDF, TIFF, BMP, and RID formats. It is particularly useful if you have an image setter that supports any of these formats, as it enables you to easily plot Gerber and Protel PCB files.