We update our setup program from setupA to setupB.Only one file inside the package is different from the previous one.These two package has the same Product code, Product name, version number , package code..... When I install setupB to a target machine which already has setupA installed,the maintainence interface appeared, no matter I chose to "reinstall" or "modify", the result came out that the new file didn't overwrite its previous version although the whole process was error-free. I conclude the windows installer called the previous setupA automatically, thus, I changed the package code of setupB, then the msi fiile combined with setupB is called and objective file is overwrited successfully.However, another strange thing occured, in windows Add/Remove panel there are two same entries. Why?
You have 2 entries because you changed the Product ID of setup B. Windows treats a New GUID as a new installer. And therefore it thinks that setup A and setup B are different. You can try and remove both entries via add/remove programs.
Vijay_K wrote: You have 2 entries because you changed the Product ID of setup B. Windows treats a New GUID as a new installer. And therefore it thinks that setup A and setup B are different. You can try and remove both entries via add/remove programs.
Acturally, they have the same Product ID. I'v mentioned that in my problem describiton. Thanks for your help all the same.
isczsd wrote: I changed the package code of setupB, then the msi fiile combined with setupB is called and objective file is overwrited successfully.However, another strange thing occured, in windows Add/Remove panel there are two same entries. Why?
I was going on this.... i thought that was the problem. never mind, hope someone helps u
