[wix-users] Default Program Associated with File Extension

[Kevin G. Joback]

We have four products, referred to here as A, B, C and D, that all
manipulate the same types of files. The file types all have what we assume
to be unique extensions, e.g., "mkskbd", "mkscdd", etc. What we would like
to do is have the file types be associated with our programs in the order:
A, B, C, D.

 

So if someone has product B installed, and double clicks on a .mkskbd file,
we want product B to start and open the file. If someone then installs
product C and double clicks on a .mkskbd file, we still want product B to
start and open the file. However, if someone then installs product A and
double clicks on a .mkskbd file, we would want product A to start and open
the file. The ordering should also be preserved when a product is
uninstalled. (Ideally we would also like all the installed products to be
displayed when the user selects the Open With. menu option.)

 

Right now it seems that a file extension is associated with the last program
installed. Each product has its own separate bootstrapper and installer
program. Each product records its presence in the registry and can check for
the presence of the other products. Here is the code we currently use to
associate the file extension:

 

      <Component Id="compProgramExe" Guid="   ">

        <ProgId Id="mksKnowledgeBaseDocuments" Description="An MKS knowledge
base document" Advertise="yes" Icon="iconKBDoc">

          <Extension Id="mkskbd" ContentType="application/mkskbd">

            <Verb Id="open" Command="Open" Sequence="10"
Argument=""%1"" />

          </Extension>

        </ProgId>

      </Component>

 

(Not sure what the 'sequence' argument does. However, its value is in the
order of A, B, C, D with A being the smallest.)

 

Any suggestions will be appreciated.

 

Thank you,

Kevin

 

Kevin G. Joback, PhD

Molecular Knowledge Systems, Inc.

 <http://www.molecularknowledge.com/> http://www.molecularknowledge.com

Phone: 1-603-472-5315 (USA GMT-4:00)