Multiple gtk installations

[Benjamin Thaut]

I'm wondering what's the correct way to handle multiple gtk 
installations on windows? When developing I most likely will have at 
least two at all times, the 32-bit version and the 64-bit version.
When they are both added to the PATH they will obviously conflict.

Googeling this issue doesn't help much because of the double meaning of 
"Windows".
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Kind Regards
Benjamin Thaut