Powershell and PSExec = Password failure

I have a powershell script...with a call to psexec inside of it.
So technically both tools have different character rules for a password.

I have a strange password that  is as follows  
Gy^KZwU.H6>{


The powershell and included psexc is as follows:

$Processes = Get-WmiObject -Class Win32_Process -ComputerName $Computer | ? {$_.name -like "$processname*"}
foreach ($process in $processes) {
$commandval = $process.commandline
$process2 = [WMICLASS]"\\$Computer\ROOT\CIMV2:win32_process"
$process.Terminate()
& "C:\PSTools\psexec.exe" -accepteula -i 2 "\\$Computer" -u "domain\user" -p "Gy^KZwU.H6>{"  "D:\filepath\program.bat"
}

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Please help.  I tried inclosing the   ^ in '' and the { in '' and still failed essentially causing that user to lock out as this script loops more than 3 times.