You would think running a dos command from powershell would be simple right? I was trying to assemble a fairly complex command, run it and parse the results. (Trying to run TFPT from the Visual Studio powertools. This in it self was a work around so I could load 32 bit libraries in a x64 shell).
The command was pretty complex so I didn't realize where my problem truely was for some time after trying various invoke-expression/item, "&" running, cmd /c, etc.
I could not figure out why my command would run correct at the dos prompt but not work when running through cmd /c. Apparently, there is a VERY important little space that I wouldn't have thought would matter. Silly me.
$var = cmd /c " `"$TFPT`" workitem ..."
is not the same as
$var = cmd /c "`"$TFPT`" workitem ..."
It seems that the powershell processor needs that space for it to correctly pass the line to the cmd shell. I don't know why.
Hopefully this will help somebody out.