While installing the installer, it automatically uninstalls the already installed application

[jnagendra]

While installing the installer, it automatically uninstalls the already installed application.

i.e., both the installers are built by InstallShield Spring 2012.

1. Installed one application (Say ABC) and it is running fine. I closed it

2. Now i tried to install the second application (XYZ). 

3. Here the first installed product (ABC) will gets uninstalled automatically and then installs the second one (XYZ)

**Note: Here vice versa is not happening. i.e., if XYZ is installed first and later ABC is installed then both are working fine.

Can anyone please guide me in solving the problem. Thanks in advance

[shunt · Accepted solution]

This sounds suspiciously like Major Upgrade behaviour.

Are these 2 products related? Do you have any upgrade items in your project?

If you want them to be both be installed as completely stand alone applications then make sure of the following:

- They have different Upgrade Code

- They have different Product Code

- They have different Package Code

- They have different Component GUIDs

- They are not installing to the same directories

- They have a different Product Name

[jnagendra]

Hi Shunt, Thank you so much. With you're points... it solved my issue. Product code is unchanged. After changing the product code it solved my problem. Thank you so much once again 🙂