I do not have the Compatibility Tab either... I have it on other icons... just not there for Sims 2... why not?
I'm running Windows 8.1 and also the copy of the Sims2 is the recently downloaded one from EA's free Sim2 giveaway... if that matters..
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Is there a way to force the compatibility tab to come up? I (think) I was able to force it into Windows XP SP 3 recovery by using the "Troubleshoot Compatibility" option when right clicking on the icon... but I have no way to confirm that the changes I make are remaining or do I have to do that every time? Would much rather do it manully through the compatibility tab...
For me, the game doesn't crash... but it takes forever for all loading screens, and just seems to run somewhat sluggishly...
I've red in another forum that Sims 2 runs slow on newer computers because it's older and doesn't run right on multi-procesor machines that most of us have nowadays... they said to bring up task manager while Sims2 is running, go to task manager, details tab, right click on the Sims2 process, choose "set affinity", and uncheck all the tick boxes except for "cpu 0"...
The affinity thing seemed to speed up loading times slightly... but still ridiculously long... maybe it's just "supposed" to be that way when you have so many expansions (due to having the Ultimate edition from the giveaway)... Is there a way to uninstall expansions one at a time just so I can experiment with the base game alone?