Wix bootstraper shared application upgrade

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Windows-Installer

installer

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Hi,

I have 5 bootstrappers which have shared application developed by me.

Lately i upgraded the shared application. is it possible to define the shared application will only be installed if it not exist or it version is higher then already installed.
But if its version is lower (downgrade) only the application will be installed without the shared (if its possiable to update the reference counter it will be great)

What I have tried:

I have 5 bootstrappers which have shared application developed by me. 

Lately i upgraded the shared application.  is it possible to define the shared application will only be installed if it not exist or it version is higher then already installed. 
But if its version is lower (downgrade)  only the application will be installed without the shared (if its possiable to update the reference counter it will be great)