?
Solved

Wise Windows Installer v6, test for Registry value

Posted on 2010-11-26
4
Medium Priority
?
901 Views
Last Modified: 2012-05-10
I am using Wise Windows Installer v6 Professional, and need to test for the presence of a specific Registry value and abort the installation if it is not found. I am currently using the Search System option to retrieve the data from the value, which is a path that is saved to [INSTALLDIR].

I need this test becuase I need to abort the installation if a another of my installations programs has not been previously executed, which would have created and set the value that I am testing.
0
Comment
Question by:JVarco
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 40

Expert Comment

by:Vadim Rapp
ID: 34236384
ok... so what's the problem?
0
 

Author Comment

by:JVarco
ID: 34239085
If the system search suceeds, the data is retrieved from the Registry, the [INSTALLDIR] variable is updated. If the search fails, the [INSTALLDIR] variable defaults to the path set in the Product Details page. So the installation does not know the search failed, it just installs to whichever path is set in the variable.

I need to be able to determine if the Registry key or value name exists at all, or if the data in another value is the wrong data, notify the user and abort the install.

If the retrieved path data is valid, I need to be able to append additional path data to it and save it to {INSTALLDIR].

Does this help?
0
 
LVL 40

Accepted Solution

by:
Vadim Rapp earned 2000 total points
ID: 34270483
Then do your system search for another property, rather than INSTALLDIR; then analyze that property. You can create Launch Condition based on the property (go to setup editor /product). For instance, if you create system search that returns the result in MYPROPERTY, then specify launch conditition MYPROPERTY. If the search does not find the value, then MYPROPERTY will be empty, launch condition will fail, and installation will be aborted. Make sure that the action LaunchConditions is placed after AppSearch in the installation script, in both User Interface and Execute Immediate.

In order to append returned value to INSTALLDIR, go to the installation script, and insert action Set Property somewhere after LaunchConditions.
0
 
LVL 40

Expert Comment

by:Vadim Rapp
ID: 34270511
The last paragraph of the prev. comment - this should be done only in Execute Immediate, so it does not get appended twice.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

One of the major drawbacks of deploying applications by GPO is the complete lack of any centralized reporting. After a normal deployment, there are two ways to find out if it was successful – by looking in the event log, and by looking in the log of…
Among others, I monitor the Windows Installer zone and Installer zone. I find that many of the questions could be answered much more quickly if a Windows Installer verbose log were submitted with the question.   However, I do not always have t…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…

649 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question