Newsletter June
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Dear customer,

After having spent 10 years in an old banking office we have finally moved to a new office, about 5 minutes removed from the old office. The new building offers a lot more space and more modern facilities.

Our contact information will remain largely the same. Only our postal address has changed. It is now:

Den Isomo 11, 2990 Wuustwezel.

We wish you much reading pleasure,
Marc Persoons and Wim Kalfsvel, CEO's of Periskal and Noordersoft


foto nieuwbouw

Spring update charts

Each year around the start of the sailing season we release a patch containing updated charts. Starting with the 2017 version you should automatically receive a notification if your version is older than the latest version. (As long as there is an internet connection available) It is also possible to manually download the latest free patch through our website . This patch is ofcourse only available to those who have already updated to PC-Navigo 2017. The Update is available on


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