If Excel 2007 crashes while running a RealData product, you may find that whenever you open the same RealData product thereafter, you see this message:
Runtime error 1004: Unable to set the installed property of the add-in class.
The cause of this problem is unknown, but you can work around it as follows:
After seeing the above message, while still in the product, select “Excel Options” from the Office Menu (circle at top left) or File > Options. Select “Add-Ins”, then find “Manage: Excel Add-Ins”, and click “Go…”.
Find the appropriate add-in for the product you are running:
for REIA Standard Edition v14: Realdata-Reia14A
for REIA Standard Edition v15: Realdata-Reia15
for REIA Standard Edition v16: Realdata-Reia16
for REIA Standard Edition v17: Realdata-Reia17
for Comparison Analysis: Realdata-Ca1A
for Portfolio Analysis: Realdata-Pa1A
for REIA Lite Edition: Realdata-Lite11A
for REIA UltraLite Edition: Realdata-Ul2A
for REIA Express Edition v2: Realdata-Ee2
for C/I Development v5: Realdata-Cid5A
for C/I Development v6: Realdata-Cid6
for On Schedule v5: Realdata-Os5
for Comparative Lease Analysis v2: Realdata-Cla2A
for Comparative Lease Analysis v3: Realdata-Cla3
for Personal Financial Statement: Realdata-Pfs4
for 1031 Exchange Analysis: Realdata-1031
Click the checkbox for that add-in, and click OK. This should resolve the problem.