RE: (vista) live messenger wil not open ( event ID 78 ) Thanks , I tried what was suggested but it still doesn't work ,the side by side error is 1:C:\windows\WinSxS\manifests\x86_microsoft.vc 90.crt_1fc8b3b9a1e18e3b_9.0.30729.4148_none_5090ab 56bcba71c2.manifest 2:C:\windows\WinSxS\manifests\x86.v...