Installing Photoshop CS3 on Windows 7 x64 October 8th, 2009
According to the system requirements, the x64 version of Windows 7 is not supported in CS3 but as always, there is a work around!
- Run cmd.exe with administrator privileges (Start > type ‘cmd’ then right click on cmd.exe and select Run as Administrator, then click Continue when prompted by the elevation consent dialogue box). This will open a command prompt in c:windowssystem32
- Type cd..SysWOW64
- Type regsvr32 jscript.dll
- Type regsvr32 vbscript.dll
That should work; you can now run the installer.
The problem is that the Photoshop installer is a 32-bit program, which means that it needs access to all 32-bit DLL’s and COM registrations. Strangely, the 64-bit DLLs on x64 Windows are in the system32 directory and the 32-bit DLLs are in the SysWOW64 directory.
WoW64 means ‘Windows on 64-bit Windows’ and it contains all the 32-bit binary files required for compatibility.
Let me know if this helps anybody.