I have an application that precomputes and caches some data after installation. The logic to check if we need to rebuild this cache was pretty and simple: if the cache "modified" timestamp is older than the source file, then we need to update it. This way when we change something in this file or simply install a new version of application, timestamp of relevant source file is going to be updated, become bigger than timestamp of cached file and cache will be rebuilt once. Then "cached" file timestamp gets bigger than "source" and no further rebuilds happen.
Well, it worked, except it turns out now that InstallShield does not set "modified" timestamp for files, just copies timestamps of original files. Is there a way to override this behavior and force IS to set "modified" timestamps to date/time of the moment of installation?