Is there a slight difference in how the registry associations are set up in the two cases, e.g., in what is quoted and what isn't? It's been a couple of years since I used Windows enough to mess with registry assocations, so the details are fuzzy in my mind, but ISTR that sometimes little easy-to-miss things like whether the %1 was inside the same quotes as the filepath or a separate set of quotes could make a big difference. Also you don't mention what happens if you double-click a .pl file in explorer.exe; that might help diagnose whether the problem has more to do with the association itself (more likely) or the way the big commercial program is handling it (also possible).

"In adjectives, with the addition of inflectional endings, a changeable long vowel (Qamets or Tsere) in an open, propretonic syllable will reduce to Vocal Shewa. This type of change occurs when the open, pretonic syllable of the masculine singular adjective becomes propretonic with the addition of inflectional endings."  — Pratico & Van Pelt, BBHG, p68

In reply to Re: More on Hiding DOS Windows by jonadab
in thread Hiding the DOS window.. by wa4otj

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