Hi John, I am glad that resolved the problem. When you talk about backups, presumably that includes backups for your FH projects. If so, then checkout the FHUG Knowledge Base > Glossary > Backup & Recovery: http://www.fhug.org.uk/wiki/doku.php?id=glossary:backup_and_recovery Especially the section headed "What is not backed up?" and the Plugin "Backup and Restore Family Historian Settings". Regards, Mike Tate -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Payne Sent: 26 January 2014 19:01 To: Family Historian Subject: Re: [FHU] Error loading V5 Hi Mike, Thank you for advice, I installed XP Service Pack 3, this has resolved my problem. I was hoping to install FH V5 with only Service Pack 2, my intention was to use this old laptop for only backups and not to connect to the internet due to Microsoft withdrawing support for XP from this coming April. John On 23 Jan 2014, at 20:34, Beryl & Mike Tate <[email protected]> wrote: > Check this thread in the FHUG Forums: > Problem opening V.5: File ';mfc100.dll' > http://www.fhug.org.uk/forum/viewtopic.php?f=49&t=9829 > > There it suggests you need XP Service Pack 3 installed, or offers a Microsoft link to download missing mfc100.dll file. > > If that does not fix the problem then an FHUG Forums Search for "mfc100.dll" found some other suggestions. > It is always a good idea to search the FHUG website for previous topics or the Knowledge Base for advice. > You do not even have to register to use the Search features. -----Original Message----- > I have recently cleaned out my 2nd XP Laptop which was getting very slow. > I use it as a backup to my MacBook VM Windows 8.1 > I have made numerous attempts to install V5, I keep receiving the following message ; Cannot find import ; DLL may be corrupt or missing or wrong version File "mfc 100.dll", error 126. > I have installed V4 with no problem, is the V5 installation disk faulty, prior to this the disk was only used twice and has been kept in its box in a warm room.