NWN2 Patcher

This patcher will let you patch you NWN2 commpletely offline as long as you have downloaded one or more of the patches beforehand.

Offline patches are hosted by NWVault here.

How to use

Make sure that NWN2 is not running before proceeding...

Download one of the patches normally used with the built in nwupdate.exe usually called something like nwn2_pc_english_from100788_to102809.zip

Unzip the file into the nwn2 installation directory, the above shown file will likely contain a file called
nwn2_pc_english_from100788_to102809.rtp . I would advice to place the .rtp file in the nwn2 installation directory, but have managed to patch my NWN2 with the .rtp file located elsewhere.

As with the nwupdate.exe you will still need up to 6GB (or more) of free space to patch, but should with this patcher be able to choose where to take it from (and not just the drive where NWN2 is installed as nwupdate does). Version 2.17 and forward on NWN2Patcher will, if applying one patch at a time tell you approximately how much temp space is needed for a given patch.

Select a patch file and optional temp directory with lots of free space, 6 GB or more is required for the larger patches (the program defaults to the root of the drive with the most free space) and then press Patch to start patching.

With version 2.15 another patching option has been added making it possible to apply several patches in one go by queuing them. To use this feature press the Queue button and add patches to the queue (Be carefull to add them in the correct order or you may harm your installation). Once you have added patches to the queue
press the close button and press the Patch button to start patching from the queue.

If a CRC error or out of space error is encountered when using queued patching, the patch engine will as with normal patching roll back to latest successfully applied patch.

When using the queue option it is not possible to use the ignore missing files, verify only  or undo patch options. This is naturally because ignored ignored bad files should not be taken lightly. As for the Verify only option... Since it does not write files to disk and patches often add new files, patching of those not written files
by a later patch is deemed to fail.

A new feature in version 2.25 is the undo patch feature which is available when applying a single patch (not using queued patching). The undo patch feature will let you choose a directory where the patcher will create a "undo_fromxxx_toXXX" (X being version numbers) subdirectory into which the files modified by the selected patch will be copied prior to patching your installation. Additionally NWN2Patcher will create an undo_patch.bat file which when executed will first delete any new files added byt the patch and the copy back the affected files before finally set the version in your windows registry to the one it was prior to patching.

NOTE that the backup taken by the undo patch feature is not compressed, and can take up several GB of space. It will tell you how much space is needed before backing up. When using the undo patch feature the copying of files to backup before patching may also take some time.

NOTE also that any savegames made while the patch to be undone was applied may or may not be corrupt after undoing the patch. This is due to the way the savegames are structured, so the safest would be to revert to an earlier savegame.

Running undo_patch.bat while nwn2 is running will fail, shutting nwn2 down and rerunning undo_patch.bat should work.

It may take some time to apply the patch(es), depending on your system, but you can follow the progress on the progress indicators and will also be notified upon success or failure by a messagebox.

The file progress indicator might seem to be at 100% for a long time with some files (usually the large ones), this I believe is caused by the overhead time used to write the patched file to the harddisk before starting on the next file.

If you reapply a patch, the file progress indicator will only change when a file is actually modified. The total progress indicator will count normally.

If you wish to verify that you can patch without getting CRC errors simply check the "Validate install only" checkbox and a quick simulated patch will happen listing any errors. Note that real patching will perform rollback if errors happen so this feature is merely for those wanting to quickly check the state of their installation. Temp space for patching will NOT be verified as it depends on the patch,.

From version 2.10 it is possible to force the patch engine to ignore files that are missing or the patchengine believes are incorrect. This was implemented to allow those who modify the original campaign (or otherwise customise the original NWN2 files) to update their game. This MUST be used with caution as it can
cause unforseen results (reinstalling game, ruining savegames etc.) When/if using this option please check the listbox to verify that only the files you had modified were bypassed. After having used the Ignore files option you should NOT contact Obsidian support for help with any problems with the game or savegames from
a game where the "Ignore Files" option was used.

NOTE: If you get crc errors with nwupdate.exe, my patch program is likely to fail also.


You MUST KNOW which version of NWN2 you have and use the correct patch file for your version of NWN2 (you can see it in the launch window of NWN2 and also when my patcher starts). You
should choose an .rtp file where the number after from in the .rtp filename matches your version (ignore the . when comparing i.e. 100788 equals 1.00.788).

Patching with the wrong RTP file may damage your NNW2 installation and a reinstall could be required.

I am NOT responsible if you have to reinstall NWN2 after using this (I always update my NWN2 with this utility and had no problems with it)

In case of error check the listbox for more specific error messages. I however cannot help you with errors reported in the listbox as they originate directly from the patchw32.dll file.

Grab the software here



2009-05-21: Latest NWN2Patcher is v2.27

2007-10-14: Latest NWN2Patcher is v2.25

2007-09-29: Latest NWN2Patcher is v.2.15

2007-06-02: Latest NWN2 patcher is v. 2.00

2007-02-11: Latest NWN2 patcher is v. 1.11

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