Updating XAP withouth changing the app_id : sllauncher.exe

Question

I have a Silverlight application installed Out-Of-Browser on multiple computers. Now I'd want to update the xap on those. I dont want to manually update every computer.

I know I can do it through sllauncher.exe but the problem is that my application is changing its app_id. I need to preserve it, is there any way to do that?

secondly, we need to specify a local file with the /install parameter. It does not seems to work if I specify the web url to my new xap, is that normal?

Thanks

score 1 · Answer 1 · answered Sep 07 '11 at 20:22

1

You don't need to use sllauncher to update your xap. All you need to do is call CheckAndDownloadUpdateAsync. It will check for a new version of the xap and if one is available it will download and update it for you.

answered Sep 07 '11 at 20:22

Denis

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Thanks, but I like I said I dont want to manually update every computer, I'd like to do it through a batch file. – danbord Sep 08 '11 at 02:26
There is nothing manual about calling CheckAndDownload... from your application. Unless we have different ideas about what "manual" means – Denis Sep 08 '11 at 08:52
After calling CheckAndDownloadAsync, we need to manually restart the application. – danbord Sep 08 '11 at 12:21

score 1 · Answer 2 · answered Sep 09 '11 at 03:20

For Silverlight OOB applications its always better (must) to use CheckAndDownloadUpdateAsync (to update) which will check and download if there is a new version of the XAP. You can check this everytime the user starts the application or before closing the application, or at regular intervals. No new app_id is created as its updating.

You can use sllauncher.exe to install the XAP (it doesn't update) creating a new app_id. And the /install:XAP file might be a local file or a shared file. It cannot be a web url.

You can give web url at /origin:Web Url. This will be useful when you want to update your application.

score 1 · Accepted Answer · answered Sep 09 '11 at 12:20

I realized I can do it just by replacing the xap file directly in the local drive here :

"C:\Users\myuser\AppData\Local\Microsoft\Silverlight\OutOfBrowser\1111111111.appName\appName.xap"

But I am not sure it doesn't mess up anything by doing it that way. But it seems to work fine though.

Updating XAP withouth changing the app_id : sllauncher.exe

3 Answers3