App-V: How the Sequencer Detects an Existing Package was Created

One of the most consistent recommended practices throughout the history of App-V sequencing is to always sequence on a clean sequencer. Starting with App-V 4.6 SP1, a detector was put in to warn users if they were about to sequence on a machine where a previous package was sequenced.   When the App-V sequencer is…

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App-V 5: On Environment Variables

Environment variables are managed on a per-package basis in App-V 5 just as they have with previous versions. During sequencing, the Environment Variable Virtualization Subsystem (say that 10 ten times fast) will capture snapshots of the user and system variable list before and after the monitoring process. Then lists are compared and any differences are…

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App-V 5: On Sequencing Using Tokenized Paths, PVAD’s, VFS, and VFS Write Mode

When sequencing applications, you often never know how the application was written with regards to what paths are actually referenced via hard-coded paths or through tokenized, or well-known paths or KNOWNFOLDERIDS. In previous versions of App-V and Softgrid, these paths were referenced using %CSIDL% variables. These are well-documented on MSDN (http://msdn.microsoft.com/en-us/library/windows/desktop/bb762494(v=vs.85).aspx). If the application was…

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App-V 5: Application Troubleshooting: On the Origins of an Error Message

Have you ever been testing a virtualized application and it fails with a bizarre application error that is either extremely vague (unknown error) or coupled with some random hex code? Your first reaction usually is “Where’d that error come from?” That is a good reaction to have as it is the first major hurdle in…

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App-V 5: On Using Sequencing Templates

Sequencing Templates (.APPVT) files are designed for automating the sequencing of applications. While you can take advantage of some of the benefits of templates with manual, interactive sequencing, be careful making assumptions when sequencing following the importing of a template in the Sequencer GUI. Sequencing Templates are also essential for the upgrading of packages. Remember…

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