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How to open .DP files on Windows

To open .DP files on Windows, if you need to inspect contents: open the .dp as a JAR/ZIP archive using an archive tool (do not rename it unless your tool requires it).

Step-by-step instructions

  1. If you need to inspect contents: open the .dp as a JAR/ZIP archive using an archive tool (do not rename it unless your tool requires it).
  2. If you need to install it: use an OSGi environment that supports Deployment Admin (for example, an Apache Felix Deployment Admin-based runtime) and deploy the .dp through that system’s deployment/update mechanism.

Alternative methods

  • Open .DP in a browser-based viewer if desktop apps fail.
  • Try opening .DP on Windows with a secondary app to rule out app-specific issues.
  • Convert .DP only with trusted tools when direct opening is not possible.

Common issues

The .dp file won’t open in my usual apps

An OSGi Deployment Package is not a document; it is a JAR-based deployment archive intended for an OSGi Deployment Admin service. Most desktop apps will not recognize it.

  1. If your goal is to inspect contents, open it with a ZIP/JAR archive tool (it is a standard JAR).
  2. If your goal is to install/update software, use an OSGi runtime that includes a Deployment Admin implementation and deploy it through that runtime’s supported process.

The archive opens, but the contents look confusing (JARs/metadata)

.dp packages are meant for automated deployment, so their internal structure is geared toward OSGi Deployment Admin, not human reading.

  1. Check the package metadata and included bundles/resources as you would for a JAR-based distribution.
  2. Consult the OSGi Deployment Admin specification to understand what the package must contain and how it is processed.

Deployment fails in an OSGi system

Deployment Packages are processed by a Deployment Admin implementation, and failures typically indicate a mismatch with the target OSGi environment or an invalid/incompatible package.

  1. Confirm the target system actually provides a Deployment Admin implementation compatible with the package.
  2. Verify you are using the correct package for that device/runtime version and that the file is complete (not truncated during transfer).

Wrong file association (it opens in the wrong app)

If your OS is set to open .dp with an unrelated program, double-clicking won’t do anything useful.

  1. Use “Open with” and choose an archive tool to inspect it (since it is a JAR/ZIP).
  2. Keep a separate workflow for installation: deploy via the OSGi runtime’s Deployment Admin mechanism rather than by double-clicking.

Security note

.dp files are standard JAR (ZIP) archives; treat them like software update packages. Only install a .dp into an OSGi system if you trust its source and the update channel.

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