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Editorial Team
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Asked: 2026-06-15T14:41:29+00:00

My Rad Studio cant open default extension (like dpr , dproj , pas ).

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My Rad Studio cant open default extension (like dpr, dproj , pas ). How i can associate these extensions in the RAD Studio XE3 option? I search in the Tools->Options but i don’t find path for do that.

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1 Answer

  1. Editorial Team

    Merge this into your registry:

    Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.DPR]
@="BDS.DprFile"

[HKEY_CLASSES_ROOT\BDS.DprFile]
@="Delphi Project File"
"FriendlyTypeName"=hex(2):40,00,25,00,43,00,6f,00,6d,00,6d,00,6f,00,6e,00,50,\
  00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,25,00,\
  5c,00,45,00,6d,00,62,00,61,00,72,00,63,00,61,00,64,00,65,00,72,00,6f,00,5c,\
  00,53,00,68,00,65,00,6c,00,6c,00,5c,00,42,00,44,00,53,00,53,00,52,00,2e,00,\
  64,00,6c,00,6c,00,2c,00,2d,00,31,00,37,00,30,00,39,00,00,00

[HKEY_CLASSES_ROOT\BDS.DprFile\DefaultIcon]
@="\"C:\\Program Files (x86)\\Embarcadero\\RAD Studio\\10.0\\Bin\\delphicoreide170.bpl\",3"

[HKEY_CLASSES_ROOT\BDS.DprFile\Shell]

[HKEY_CLASSES_ROOT\BDS.DprFile\Shell\Open]

[HKEY_CLASSES_ROOT\BDS.DprFile\Shell\Open\Command]
@="\"C:\\Program Files (x86)\\Embarcadero\\RAD Studio\\10.0\\Bin\\bdsLauncher.exe\" \"C:\\Program Files (x86)\\Embarcadero\\RAD Studio\\10.0\\Bin\\bds.exe\" /np"

[HKEY_CLASSES_ROOT\BDS.DprFile\Shell\Open\ddeexec]
@="[open(\"%1\")]"

[HKEY_CLASSES_ROOT\BDS.DprFile\Shell\Open\ddeexec\application]
@="bdslauncher"

[HKEY_CLASSES_ROOT\BDS.DprFile\Shell\Open\ddeexec\topic]
@="system"

    Obviously this assumes your XE3 lives in the same place as mine. If it’s elsewhere on your machine, then update the paths accordingly.

    This is probably easier than an wholesale re-install.

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