Installscript Project. Multi Instance Project. Hi, There are probably many threads related to this but I couldnt find them. I have a problem. My Product GUID's are the same, My version is determined by the installer during runtime, the version can be 3.11.1, 3.11.2, 3.12.0 so on.
The problem I am facing is that, if I have a 3.11.1 installed, and then Install 3.11.2, it is overwriting the 3.11.1 entry in add/remove programs. I guess becuase the PRODUCT GUID is the same, this is why I am facing this problem? Is there a way to disable this? Is is possible to set the Product GUID to = the Instance GUID at runtime?
In the installshield documentation it says that a multi instance project should create a new ARP entry everytime. My ARP gets overwritten by a new release. If i install the new release then the old release I get 2 entries as expected.
The instance GUID changed becuase its a multi-instance project. I dont really want to change the Product GUID. Any other ideas. I dont knwo why its doing this, as the installshield documentation says "multi instance projects create unique ARP entries".
In case of a InstallScript project, I think the instance id should be appended to the uninstall regsitry entry. Doeble check your script to see if it does this. Something like the following in OnCustomizeUninstInfo():
Stefan Krueger wrote: In case of a InstallScript project, I think the instance id should be appended to the uninstall regsitry entry. Doeble check your script to see if it does this. Something like the following in OnCustomizeUninstInfo():
Thanks Stefan, I came across this, but it turned out to be a bug in the program I had written. IFX_MULTI_INSTANCE_SUFFIX, i dont use this in my program, which never the OnCustomiseUninstInfo, this made things alot harder to debug, but I got there in the end, thanks mate.
