XFree86® and DPS : The DPS server side
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## 3. The DPS server side

To use DPS clients, you need to install a DPS server side, which can be either a server extension (a ``DPS/X extension''), or a separate process (referred to, variously, either as a ``DPS/NX agent'' or, rather confusingly, as ``Client-Side DPS'' (CSDPS).

### 3.1. Display Ghostscript

Display Ghostscript (note the capitalisation), or DGS, is a client-side implementation of DPS based on the Ghostscript PostScript interpreter. DGS is still in beta at the time of writing; it does, however, provide a very usable implementation of DPS, although it still has some problems with the semantics of multiple DPS contexts.

DGS is available from the GNUstep download area.

### 3.2. The DPS extension

The DPS extension is a much younger project aiming at producing an efficient server-side implementation of DPS. The extension is currently in a state best described as alpha; current versions are known to crash the X server under some circumstances.

The DPS extension is available from the DPS extension site.

XFree86® and DPS : The DPS server side
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