Duplicate Files: CAP vs. KAP

When installing BSB4-style ".CAP" chart files, it is possible to still have older BSB-3 style ".KAP" files still in the same chart folder. While this is not a problem for many instances of Maptech products, it can create incompatibilities when printing, transferring charts to Pocket Navigator, and other anomalies.

This download searches the chart storage directory on your computer and removes unused .KAP files. It should be downloaded and run on any system where older BSB 3-style .KAP files have been replaced by newer BSB-4 style .CAP files in the same region.

Running this program on systems that do not have this condition will have no ill effects.


File Name 

File Size 



  419.00 KB 
BSB Charts (Digital ChartKit, etc.) copied to the HD.

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Contacting Technical Support

First browse our website to get the answers you need. If you cannot find them, we suggest sending an email to

Support is available to registered users of versions 8.3 and newer from 10 AM to 4 PM EST/EDT, Monday through Friday.

CAPN Software LLC
Fax: 703.759.3266


Product Registration

To register your product follow the link below and complete the product registration form, you will receive an email with The CAPN registration code confirming your registration.

Product Registration Form

CAPN Software LLC // Fax: 703.759.3266