Error message: Package contains invalid characters installing patchlevel 6
I have successfullly installed SAP GUI 7.20 compilation 2, using SAP installation server (40 machines, Windows XP sp3 32 bits, latest updates).
I have successfully installed patchlevel 6 in the SAP installation server. (gui720_6-10007878.exe, downloaded from SAP Portal)
SAP GUI is configured to search for updates after 5 double-clicks on desktop icon. I forced the 5 double-clicks on a test machine and the patch begins to install; then informs me that there is a pending reboot.
When I reboot the machine a SAP Netweaver Front-end installer window appears with the error: "/Package contains invalid characters like /*?"<>\" - "Your system has a pending reboot". If I reboot again the message is displayed again.
If I click on the "Cancel" button of this window, Windows XP continues booting and SAP GUI works fine.
How can I avoid the installation of this patch on all the machines?
What can be wrong?
Thank you very much.
Uruguay - South America.