In order to get Pando running on Windows Vista, you should create a new profile to allow Pando access in Windows Firewall:
(You can view screen shots of the following steps here ).

1. Click Start | Programs | Accessories and select Run.
2. Type mmc.exe in the Run box. You may be required to enter administrative credentials or click to authorize running the program.
3. In the blank MMC, click File | Add/Remove Snap-in.
4. In the Available Snap-ins list, scroll down and select Windows Firewall With Advanced Security. Double-click on it or highlight it and click the Add button.
5. In the Select Computer dialog box, accept the default (Local Computer) and click Finish.
6. Click OK in the Add/Remove Snap-ins Box.

Now you should have advanced firewall in the console tree view. Double click on Windows Firewall with.. to expand the view. Now right-click on Inbound Rules, and select New Rule.

• For Rule Type, select Program, Then Next.
• For Program, select This Program Path, then browse to your Pando directory and select Pando.exe, hit Ok, then click Next.
• Select Allow The Connection and click Next.
• When asked "When Does this rule Apply?" check all if unsure and click Next.
• For name, you can type "Pando Inbound" and description is optional.
• Click Finish.

If this still doesn't help, please contact support@pando.com