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I have the following appcmd to add an exception to IIS7's ISAPI and CGI restrictions. The exception I am adding should look like:

c:\perl\bin\perl.exe "%s" %s

Here is the command line:

appcmd set config -section:isapiCgiRestriction "-+[path='c:\perl\bin\perl.exe \"%s\" %s', allowed='true', description='Perl CGI']"

If execute this from the command line it does this correctly, however if I execute this inside a .cmd batch file the path gets mangled and ends up looking like:

c:\perl\bin\perl.exe "s

The trouble seems arise because I have to escape the quotation marks around the first %s perl.exe parameter. But why this should behave differently in a batch file is a bit of a puzzle.

Can anyone explain why this is happening?

  • Sorry to spam this over SO and SF....seems to fall into both sites. – Kev Sep 8 '10 at 10:38
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Windows batch variables should be prefixed with an %, making these %%s

| improve this answer | |
  • That fixes the batch file execution but breaks if executed from the command line. If run from command line I get c:\perl\bin\perl.exe "%%s" %%s which breaks the ISAPI restriction because IIS expects c:\perl\bin\perl.exe "%s" %s. But because I'm solving this for task automation I can live with that. I'm guessing this has something to do with differences in the way that the command line processor handles variable expansion. Thanks for the speedy answer though. – Kev Sep 8 '10 at 11:04

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