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Patch installation does not require source media


2 replies to this topic

SrikanthCJ

SrikanthCJ
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Posted 07 October 2005 - 19:20

Hi,

I have read some where in MSI 3.0 that the patch installation does not require source media.

I think this is applicable for only whole file patching and not when binary patching is used.

Please let us know if above statement is correct.

regards,
Srikanth

akerl

akerl
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  • 104 posts

Posted 08 October 2005 - 09:39

No, thats wrong. With V3, the installer infrastructure use a patch uninstall cache for caching baseline files, if the patch is a patch V3 (included Table MsiPatchSequence). In this case, Msi looks first in apllication folder and then in patch uninstall cache for a patchable file. I Msi didn't found a valid file, it must access the source.

- Andreas

Andreas Kerl

Inside Windows Installer 4.5
ISBN 3-86645-431-7


SrikanthCJ

SrikanthCJ
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Posted 12 October 2005 - 06:58

Andreas,

Do you know the path for path uninstall cache and windows installer cache.?

thanks.

regards,
Srikanth