I can't test my game in progress, the following message comes up each time:
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Illegal exception
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An exception 0xC0000005 occured in ACWIN.EXE at EIP = 0x004ACC3A ; program pointer is -182, ACI version 2.62.772, gtags (0,0)
AGS cannot continue, this exception was fatal. Please note down the numbers above, remember what you were doing at the time and notify CJ on the Tech forum.
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It happened directly after replacing a number of character sprites.
Can you try disabling sound in the Setup program and see if that stops the crash?