Compact Pro also included the ability to produce self-extracting archives. Although this was becoming common in archivers at the time, its particular implementation was notable because the extractor "stub" code was quite small at about 13 kB (compared to StuffIt at 38 kB). In an era of 14400 bit/s modems, this was a worthwhile savings. Many considered even this to be too large to bother with, and there were a number of small third-party utilities to strip the stub off from an existing archive. Compact Pro's stub could also expand files that had been split into parts, a rare feature at the time.