Pnetronics the makes of tally has stopped the support for tally 4.5... Really upgrading to tally 6 is worth it..
Another thing ....You can make a dual boot Os if you cannot do without Tally 4.5 rather than everytime booting in Dos...
First of all, please use the Search feature before starting a new topic. This way it would save a lot of time both for you and us.
Anyways in addition to the reply that I posted in the above thread, you might be interested in trying out this sofware called as DOSBox. DOSBox is a real DOS Emulator. Tally should run fine within DOS Box.
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