powershell options, windows 7

In my windows 7 laptop, I have the following:
psoptionsQ: Why there are 4 version of, what appears to be the same, software?

Could you please give a brief description for each?
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Mike EghtebasDatabase and Application DeveloperAsked:
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Robert SchuttSoftware EngineerCommented:
In the variations of the names you can see there are 2 'options' and 2 values for each, which combined gives 4 versions.

1) The ISE is the Integrated Scripting Environment, in which you can easily test and debug scripts without needing to register/sign etc.

The others are the command line versions, so to speak for 'hard core' users and those are also used to schedule scripts from the task scheduler for example.

2) The x86 versions run in 32 bit mode, which can be needed for example if you want to access 32 bit Data Sources.

The others are 64 bit versions which I run by default (pinned to my taskbar).
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David Johnson, CD, MVPOwnerCommented:
there is the command line version  powershell.exe (64 bit and 32 bit
then there is the editor powershell ise again 2 versions 64bit and 32 bit
the 32bit versions are for compatibility with legacy 32 bit modules.

there is also the option to run as administrator for both the powershell editor and the command line version
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