I'm running IS2008 pure InstallScript. I've just created a new release with a new GUID, and everytime I try and re-install (It is supposed to find the previous install and prompt to uninstall) it gives me the "version comparison failed" error. I read somewhere a while ago that if you change the GUID is should go away and it isn't... Anyone else have this issue?
Elaborate in what way? I have given the install a new guid under the General Information tab, Product Properties option. In my Uninstall.rul I have it looking for the previous GUID as well as the new current GUID so that if it is found, it is to uninstall the application.
// Check for previous version of TL2009.01 PerformUnistall("TL2009 (00)",UNINSTALL_PATH+"\\{0AB53C79-C9DF-47E4-B544-52E547C59D01}", "\""+COMMONFILES^"\\INSTAL~1\\PROFES~1\\RunTime\\0701\\Intel32\\Ctor.dll\",LaunchSetup \""+PROGRAMFILES+"InstallShield Installation Information\\{0AB53C79-C9DF-47E4-B544-52E547C59D01}\\setup.exe\" -uninst", WINSYSDIR^"rundll32"); // Check for previous version of TL2009 PerformUnistall("TL2009 (00)",UNINSTALL_PATH+"\\{A917A368-72D6-4EA4-9A69-1B026F1EB10B}", "\""+COMMONFILES^"\\INSTAL~1\\PROFES~1\\RunTime\\0701\\Intel32\\Ctor.dll\",LaunchSetup \""+PROGRAMFILES+"InstallShield Installation Information\\{A917A368-72D6-4EA4-9A69-1B026F1EB10B}\\setup.exe\" -uninst", WINSYSDIR^"rundll32");
I also have my Product version number as 2009.01.00
The version number must contain only numbers, and it must be in the format aaa.bbb.ccccc, where aaa represents the major version number, bbb represents the minor version number, and ccccc represents the build number. The maximum value for the aaa and bbb portions is 255. The maximum value for ccccc is 65,535.
Remember you can have product version like 255.255.65535.1.9 also, but installer only considers the major.minor.build numbers out of it.
