How do I check the amount of memory my program uses in vista's task manager?

The columns in xp's task manager differ from the ones in vista/7 and that's why I'm asking that question.Which column in vista's task manager shows the amount of memory that a program had allocated?

The Memory column under the processes tab... Same as XP if I understand your question correctly.

Edit: Misunderstood your question. Here's a rundown of what each memory column does from Windows Help.

• Memory - Working Set - Amount of memory in the private working set plus the amount of memory the process is using that can be shared by other processes.
• Memory - Peak Working Set - Maximum amount of working set memory used by the process.
• Memory - Working Set Delta - Amount of change in working set memory used by the process.
• Memory - Private Working Set - Subset of working set that specifically describes the amount of memory a process is using that cannot be shared by other processes.
• Memory - Commit Size - Amount of virtual memory that is reserved for use by a process.
• Memory - Paged Pool - Amount of committed virtual memory for a process that can be written to another storage medium, such as the hard disk.
• Memory - Non-paged Pool - Amount of committed virtual memory for a process that cannot be written to another storage medium.

Probably Commit Size you're looking for?