In a system sometimes QTP9.1 scripts has to be executed and sometimes QTP8.2. Due to some reason we can't have 2 systems for this purpose.
So we are planning to install QTP9.1 when that work comes and uninstall then install QTP8.2 when QTP 8.2 work comes.
Is there any problem if we are uninstalling QTP9.1 and installing QTP8.2 in the same system?
I bet all the Scripts of 8x will work in 9x (backward compatibility). there may be some changes in the way the application run the code, but if you will open 8.x scripts in 9.2 it will work perfectly alright and covert it the same way 9.5 coverts 9.2 scripts.
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Curious to know why you want to use 8.2 for/on some scripts/machines..??