Accessing Shared Printer on XP Machine Via Win7 Machine

On the Win7 box, can you just hit your start bubble, enter \\(Insert XP's PCName), and double click on it to install it when it pops up?

Actually, I entered \\FamilyDesktop\PrinterShareName and it looked for a driver but could not find any.  I then did not know where to browse manually, so I did a search for all *.INF files and it came up empty on my Win7 computer.  I hate Microsoft.

I found Windows/System32 and it allowed me to click OK, but then said it could not connect to the printer.  This is strange since it connected at the beginning and started the process of looking for a driver.

Dear
               please tell me your printer is working with window 7 .

if working then go the Control Panel and click on the Printer 5600 like that
after that you are right vlick on the Plinter 5600 and you see the tab    share    
click on the share  and apply after that give the Permeation the other user

Printer only works with WinXP, not Win7 yet.  That's what I'm trying to do.   Printer is already shared, but in the Security tab of the printer driver, under Locations, it only shows the XP computer, not my Win7 or my XP laptop.  However, username and pw is the same on boall 3 computers and my XP laptop prints just fine to the XP desktop, so I'm still thinking it is a driver issue, but what do you all think?  

is your windows 7 pc 32 or 64 bit?

64-bit.

I'll bet your problem is that you need to change the network type from Home to Office or Workplace.  Win7 automatically uses "Homegroups" if you choose home when you connected the first time and they are ONLY compatible with other Win7 machines.
Go to the Network and Sharing center, change the type to Office (or Workplace), then browse the network, choose the system with the printer attached, right-click on the printer, and connect.

Changed from Home to Office, but it didn't work.  I actually can see my XP machine on the Home network - that's not the problem.  When I find the shared printer on the XP machine and click Connect from my Win7 machine, it says that it can't find a driver for the HP 5650 Deskjet printer.  Then, when I try to go to the Internet to download the printer driver, it days the the driver is already part of the Win7 set of drivers.  Yet, I can' find it.  So, what's my next step?

I hate to say it; but, I suspect you're going to find out you're scr*wed.   For multiple O/S shared printers to work, the drivers have to be matching versions and the XP drivers have never been updated since 12/2003.
wylie's suggestion is worth a shot; plug the printer into the Win7 system, move it back to the XP system and add the shared port; though the fact that it didn't recognize it using the existing share bodes poorly on any chance of success...........

Windows 7 being the 64 bit version doesn't help either.
I know my suggestion does work in some cases, but not all.

Windows 7 being the 64 bit version doesn't help either.
I know my suggestion does work in some cases, but not all.

Use HP universal print driver for x64 version of windows, download it from HP site.

Sorry to take so long, printer is at home so will look at this tonight.  I'll try your suggestions, but possibly one workaround is to simply plug it into the Win7 PC; however, then I have the wife and kids coming into my office to get their printouts -- not ideal.  

I attached the HP deskjet locally and printed to it just fine.  However, when I put it back on the XP Desktop, I got the same problem -- needed to search for the driver.  When I do a search, why can't I find the same printer drivers that are listed in the local printer driver properties that I just installed on Win7 (see attachments).  Where does Win7 keep its printer drivers?  
-printer.jpg
-printer2.jpg

The normal location for built-in drivers is C:\Windows\INF though you may need to enable displaying hidden and protected operating system files to see it.
But; I hate to say it, I think you're scr*wed......
There is no release of drivers version 0.3.1537.16 for XP; the latest is 9.4.2.0, which is a complete version mismatch so, IMHO, it's all over but the crying.
Even if you get the drivers to use Win7's built-in, they won't be compatible with the drivers on the XP system and you'll have issues like it prints the first page and then chokes, works until you reboot, etcetera.
Sorry.

I did plug in the printer locally to the Win7 machine and the driver installed automatically, and then moved it back to the XP machine and tried to change the port in the printer properties on the Win7 machine, but it didn't work.  Almost gave up until I tried reversing the slashes:
\\pcname\sharename and it WORKED!  Thanks.

OOPS (red face) I was in Unix mode, sorry.