Here a possible Explaination if you used the upsizing wizard in vfp 5 or 6 this is a known MS VFP issue

This is an excerpt from knowledgebase article Q221666. Im still not sure why it worked for SQL 7 though, maybe servicepak 3 is installed on your machines and not on your client's


You use the Visual FoxPro SQL Server Upsizing Wizard to upsize a database to SQL Server. You select the Save Generated SQL option in step 7 of the wizard. When the generated SQL code is saved to the Script.dbf file, the memo file Script.fpt will grow to a very large size. This may be on the order of hundreds of megabytes. Issuing a PACK MEMO on Script.dbf will cause the size of the memo file to be reduced by a factor of about 1000.


STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this
article.

This bug was corrected in Visual Studio 6.0 Service Pack 3.

For more information about Visual Studio service packs, please see the following articles in the
Microsoft Knowledge Base:

Q194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

Q194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed