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Installation, Setup and Configuration
Unfortunately, VFP 7's Installshield doesn't support Custom Actions when you uninstall. The full version does, though...
>>Ho can i implement a block, which stops my program from running after a certain period of time or date. eg. a 30 Day trial period
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>>Chris
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>I am following the route suggested by others that an encrypted date is stored in the registry. When a user obtains a licence, the countdown date is replaced by an encrypted licence key. This is a simple approach and not meant to be secure. I want to make users register (and tell me what kinds of machine they have) so I can inform my development strategy and support their hardware.
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>The thing I haven't worked out yet is how to wipe all registry keys during an uninstall. If they aren't wiped properly, a user can find the trial has expired after doing a fresh install. This may be the intention of other developers, but I want all the keys wiped out. I am using the Visual Studio Installer editor and about to switch to VFP7's Installshield.
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>Should I run a applet on uninstall? Should I set the keys with defaults on install so that uninstall knows about them?
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>John Burton
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