how to check the files which are packaged in softwares

RPM package.
For RH Linux, FC Linux, SUSE Linux, CentOS, Scientific Linux, Oracle Linux
Command:
rpm -qpl rpm_package_name(centrifydc-3.0.7-733-rh9-i386.rpm)

FYI:
http://fanqiang.chinaunix.net/a1/b1/20020520/060201228.html

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DPKG package.
For Debian, Ubuntu
Command:
dpkg -L Installed_packgae_name(CentrifyDC)

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.tgz (Solaris)