5.1

Chapter 2 Capturing Applications
VMware, Inc. 19
When you select Merged isolation, ThinApp completes the following operations:
 Sets the DirectoryIsolationMode parameter in the Package.ini file to Merged.
 Sets up exceptions that apply WriteCopy isolation to the following directories and their subdirectories:
 %AppData%
 %Common AppData%
 %Local AppData%
 %Program Files Common%
 %ProgramFilesDir%
 %SystemRoot%
 %SystemSystem%
ThinApp retains Merged isolation mode for the %SystemSystem%\spool subdirectory by creating an
exception to the %SystemSystem% parent directory isolation mode.
 Between the prescan and postscan capture operations, assigns Full isolation mode to any directories that
the application creates during the installation. This process is unrelated to the isolation mode of any new
directories that the running virtual application creates.
Merged isolation mode in the Setup Capture wizard has the same effect as Merged isolation mode in the
Package.ini file, including the directory exceptions that specify WriteCopy isolation mode. The Setup
Capture wizard and manual capture process with the snapshot.exe utility configure the directory
exceptions for you with the ##Attributes.ini files within the directories.
Applying WriteCopy Isolation Mode to Prevent Modifications Outside of the Package
With WriteCopy isolation mode, ThinApp can intercept write operations and redirect them to the sandbox.
You can use WriteCopy isolation mode for legacy or untrusted applications. Although this mode might make
it difficult to find user data files that reside in the sandbox instead of the physical system, this mode is useful
for locked down desktops where you want to prevent users from affecting the local file system.
When you select WriteCopy isolation in the Setup Capture wizard, ThinApp completes a number of
operations.
 Sets the DirectoryIsolationMode parameter in the Package.ini file to WriteCopy.
 Sets up exceptions that apply Merged isolation to these directories
 %Personal%
 %Desktop%
 %SystemSystem%\spool
 Between the prescan and postscan capture operations, assigns Full isolation mode to any directories that
the application creates during the installation. This process is unrelated to the isolation mode of any new
directories that the running virtual application creates.
WriteCopy isolation mode in the Setup Capture wizard has the same effect as WriteCopy isolation mode in the
Package.ini file, including the directory exceptions that specify Merged isolation mode. The Setup Capture
wizard and snapshot.exe utility configure the directory exceptions for you with the ##Attributes.ini files
within the directories.