Reference/FindFirst

FindFirst

user_var(handle output) user_var(filename output) filespec

Performs a search for 'filespec', placing the first file found in filename_output (a user variable). It also puts the handle of the search into handle_output (also a user variable). If no files are found, both outputs are set to empty, and the error flag is set. Best used with FindNext and FindClose. Note that the filename output is without path.

FindFirst $0 $1 $INSTDIR\*.txt
loop:
  StrCmp $1 "" done
  DetailPrint $1
  FindNext $0 $1
  Goto loop
done:
FindClose $0

Command introduced with NSIS v1.60