live messenger problems...

i am having problems installing windows livemessenger on my new laptop, i can
download the installer but when i double click it i get the error message
''Error creating process
<C:\Users\JB1~1\AppData\Local\Temp\IXP000.TMP\boot strap.exe
CSAD_MARKET=xx~xx>. Reason: The system cannot find the path specified.'' can
anyone help!??